This post more than any of the others is going to be mostly upg or spg. Hardly anyone in antiquity spent a lot of effort worshipping most of these deities, especially the protogenoi, so resources are limited. If you have suggestions or personal addendums, feel free to leave them in the comments. I made a lot of decisions based on what the herbs/crystals are usually associated with: for example, black tourmaline is associated with Nyx (the night) therefore Chaos (the embodiment of the primordial soup and basically the universe) has black tourmaline too.
Also, all the deities on this list can be honored with libation of wine, milk, honey, and oil; offerings of meat or desserts; and burning frankincense/myrrh.
Disclaimer: this is not all of the protogenoi or titans that exist, these are just the most recognizable ones that have the most lore attached. I used theoi.com to research all of these deities.
CHAOS: the first to emerge at creation, the protogenos of the space between heaven and earth, and the air
Colors: black, grey, purple for the concept of chaos
Offerings: feathers, burning incense, cinnamon, anise, cardamom, clove, black pepper, representations of the four elements
Crystals: obsidian, tourmaline, labradorite, lava rock, angelite, amethyst
Animals: birds
PHANES/EROS (the elder): protogenos of procreation
Colors: red, pink for love/procreation. blue, green for nature and creation
Offerings: heart shaped objects, eucalyptus, flowers, egg shells
Crystals: rose quartz, rhodonite, rhodochrosite, malachite, azurite, garnet, desert rose selenite
Animals: birds
NYX: protogenos of the night
Colors: black, dark blue, purple for association with the night, anything galaxy patterned
Offerings: blackberries, blueberries, plum, dew (morning is fine but after sunset is best), dark feathers, dark chocolate, night-blooming flowers (like moonflower or wisteria), black tea/coffee, mugwort
Crystals: obsidian, black tourmaline, labradorite, moonstone (especially black moonstone), selenite, lapis lazuli, amethyst, smokey quartz
Animals: owl
also, she is associated with symbols of keys and veils/cloaks
EREBOS: protogenos of darkness
Colors: black for darkness
Offerings: dark chocolate, black pepper, black salt, charcoal, asphodel
Crystals: black tourmaline, obsidian, smokey quartz, lapis lazuli, azurite, red jasper
Animals: moths
AETHER: protogenos of light and the heavens
Colors: yellow, orange, white for sunlight. blue for the sky
Offerings: sunflowers, bee pollen, morning dew, fruit, feathers
Crystals: honey/blue calcite, yellow/bumblebee jasper, angelite, celestite, milky quartz
HEMERA: protogenos of the day
Colors: blue for the sky, white for the heavens
Offerings: chamomile, sage, lavender, basil
Crystals: angelite, blue calcite, selenite, celestite, milky quartz, sapphire
GAEA: protogenos of the earth
Colors: blue, green, brown for the earth
Offerings: flowers, wood, dirt, anything from nature, really. doing good deeds for the environment
Crystals: unakite, jaspers (various), agates (various), lava rock, tiger's eye, bumblebee jasper, jade, nephrite, serpentine, amber
Animals: serpents, bull, pig, bees
OURANOS: protogenos of the sky
Colors: blue, white, grey for the sky
Offerings: rosemary, sage, mint, leaving your windows/curtains open
Crystals: angelite, celestite, selenite, blue calcite, moonstone, sunstone, star jasper, blue lace agate
Animals: birds
OCEANUS: protogenos of the ocean
Colors: blue and white for the ocean
Offerings: shells, gull feathers, fish scales/bones, sea water, pearls, sand from the ocean
Crystals: larimar, aquamarine, turquoise, lapis lazuli, azurite
Animals: gulls, pelicans, fish
TETHYS: protogenos of fresh water
Colors: blue and green for fresh water
Offerings: lake/pond/river water, fish scales/bones, cattails, sand from a fresh water beach
Crystals: larimar, aquamarine, fluorite, amazonite, petoskey stone
Animals: fresh water fish, dragonflies
Colors: red and black for the underworld
Offerings: sulfur, saltpeter, black salt, charcoal, deadly nightshade
Crystals: jaspers (various), obsidian, black tourmaline, bloodstone, garnet/ruby, pyrite (contains a lot of sulfur)
Animals: bats, black dogs
KRONOS: titan of time, harvest, and abundance
Colors: yellow, gold for his scythe. white, grey for the concept of time. green, brown for fertility
Offerings: grain, bread, clocks/watches, vervain, poppy, nightshade, clove, allspice
Crystals: jaspers (various), agates (various), labradorite, quartz (various), amethyst, honey calcite, serpentine, amber
Animals: snakes
RHEA: titaness of motherhood, fertility, and generations (like of family)
Colors: red, pink for motherhood. green, brown for fertility
Offerings: menstrual blood, milk, red clover, raspberry, allspice, clove, cinnamon
Crystals: rose quartz, rhodonite, rhodochrosite, amethyst, pink opal, jade, nephrite, tiger's eye, cat's eye, amber
Animals: lion
PHOEBE: titaness of bright intellect and prophecy
Colors: blue, white, and grey for intellect. purple for prophecy
Offerings: sage, bay leaves, lavender, tests/quizzes/homework, yarrow
Crystals: lapis lazuli, amethyst, labradorite, howlite, celestite, moonstone, selenite, celestite
LETO: titaness of motherhood, modesty, and womanly demure, protector of children
Colors: pink, red for motherhood. white for modesty
Offerings: raspberry, allspice, clove, cinnamon, lavender, flowers,
Crystals: moonstone, sunstone, selenite, rose quartz, carnelian, lepidolite, howlite
Animals: wolf, rooster
also, she is associated with veiling
ASTERIA: titaness of falling stars, night time divination, and astrology
Colors: blue, black for the night. white/galaxy pattern for stars. purple for magic
Offerings: star charts, feathers (especially quail), lavender
Crystals: celestite, selenite, star jasper, amethyst, azurite, obsidian, black tourmaline, labradorite, jade
Animals: quail
HELIOS: titan of the sun
Colors: yellow, orange, white for the sun
Offerings: anything that refracts sunlight, sunflower, st john's wort, sage, cow pelt, chicken feathers
Crystals: sunstone, yellow jasper, honey calcite, carnelian, citrine, milky quartz, celestite, angelite, amber
Animals: cattle, sheep, white horses, rooster
Colors: blue for the sky. white, yellow, orange, pink for colors of dawn
Offerings: morning dew, morning glories, lavender, yarrow, sage
Crystals: rose quartz, citrine, honey calcite, yellow jasper, milky quartz, moonstone, sunstone, selenite, celestite
Animals: horses, cicadas
MNEMOSYNE: titaness of memory
Colors: red, yellow for memory
Offerings: forget-me-nots, myrtle, rosemary, jasmine,
Crystals: jade, amber, turquoise, fluorite, red/yellow jasper
Animals: animals with good memory, like an elephant or raven
PROMETHEUS: titan of forethought, creator of mankind
Colors: red, orange for the fire of creation
Offerings: fennel, burning things, charcoal
Crystals: bloodstone, carnelian, citrine, amber, jaspers (various)
Animals: eagle
Thalassa is the daughter of Aether (light) and Hemera (day) and is the protogenos of the sea, specificaly the Mediterranean. She is often depicted as the upper body of a woman rising from the sea with crab claw horns, bright cerulean eyes, clothed in strips of seaweed, and holding an oar's ship. Thalassa is often described as being fair and kind in ancient texts, such as Philostratus the Elder's Images. With her husband Pontus she had all of the fish in the sea, leading her to be be called "the mother of all." There is a statue of her in one of Poseidon's temple holding Aphrodite.
She appears in many of Aesop's Fables.In one a man chastises the sea for luring men out only to turn violent. She tells him not to blame her, that she is firm and steady and that it is the Anemoi (winds) striking her suddenly that causes her to become violent. Another has the Potami (rivers) question her about why she changes their drinkable water into salty and undrinkable water. To which she replies that if they don't like it that they shouldn't come to her. In another one a farmer sees a ship sink in the sea and curses her saying that it'd be better if no one ever sailed on her and that she's the enemy of mankind. She rises out of the sea and confronts him, saying that he shouldn't spread such evil lies about her and that if the Anemoi didn't strike her that she'd be more gentle that dry land.
With Ouranos she is said to have had the Hekatonkheiries (three gods of violent storms) and when his blood hit her after he got castrated she gave rise to Aphrodite (goddess of love).By herself she had Halia (nymph of Rhodes) and possibly the Telkhines* (sea smiths).
*SIndicate some sources claim others as their parent(s)
Ananke was the Protogenos of inevitability, compulsion, destiny, fate,and necessity, and was the daughter of Gaia and Hydros (water). It is said that she, along with Khronos (time), drove the cosmos, causing the earth to rotate and time to pass. After creation began there was confusion and chaos, so Ananke was born so that structure and order would come to the universe. None can resist her will, for it must be done. She is described as being stern, all-wise, great, brave, and serpentine, with arms so wide that they could encircle the universe,having large white wings, and is often seen holding a spindle. Some sources claim she is the mother of the Moirai. Her will is steered and managed by the Moirai and the Erinyes. Due to her unmoving nature she was not offered sacrifices or offerings, for a Greek byword was "Nothing is stronger than dread Necessity." Ananke is popular in post-Homeric literature, and is important to the Orphism cult at Corinth where she was worshiped alongside Bia (force).
Protogenos ( First Born) - As the name dictates, they are the first born gods, they are the primeval gods and the basic components that emerged in this world at the moment of creation, examples would be Nyx (Night), Hemera (Day) Okeanus (Fresh Water), Uranus (Sky), Gaia (Earth), Ourea (Mountains)).
Daimon(a)s (Full of Knowledge) - In laymen's terms they are Spirits, as spirits they hold power over the Gods and Mortals alike. Daimons are personification of concepts, feelings and things that generally don't apply to materialization/physical manifestation, exmples would be Hypnos (Sleep), Thanatos (Peaceful Death), Geras (Old Age), Philotes (Friendship), Hedone (Lust), Eros (Love), Psyche (Soul), Elpis (Hope). The Nymph(ai) are lesser spirits of the force of nature.
Titans/Titanides (Great)- The Titans are the 6 sons of Uranus by Gaia and the Titanides are the 6 daughters. The titans take aspects of their fathers heavenly dominion, while the the titanides take on their mothers earthly dominions. Though their children are also considered Titanes they were given titles according to their fathers (ex: Asteria and Letono daughter of Hyperion were Hyperionides). Examples of elder titans would be Phoibe, Themis and Krios and Iapetos. Younger Titans include Helios, Epimetheus, Pallas, Perses, Asteria, Hekate, Klymene and Metis.
Olympians - The Olympian Gods are the most sophisticated of the 3 greater pantheons (Protogenos, Titanide, Olympian). The olympian gods are the civilized gods that rule from the Heavens, the 12 Olympian gods are Zeus, Poseidon, Hephaestos, Hermes, Ares, Apollo, Aphrodite, Athena, Artemis, Demeter and Hestia.
The Chthonoi (Of The Earth) - The Chthonoi Khthonoi are the gods of the earth often agricultural and of the Underworld. These deities had cults that usually held their practices at night. Chthonic deities include Persephone, Dionysus, Hades, Charon, The Erinyes, The Moirai and some deities that had Chthonic epithets such as Hermes Psychopompos, Hekate Psychopompos, Poseidon Asphaleios and Zeus Chthonios.
