You know what? Solely because you yourself brought it up, any 2ps headcanons? Like how do they act, what's their relationship with each other/ their 1p? Would Ganon ever make use of the 2ps to take over Hyrule?
Aha! I’m so glad you’ve asked! You see, you’ve activated my trap card!
Uli does have a 2p! His name is Oshno or Os for short, in what I consider the (my) 2p universe. Hyrule is replaced by Lorule and the rest of the world is represented by the 2p characters, though unlike the Hylian commonwealth currently represented by seven beings, Lorule is mainly represented by two beings, and tormented by Gannon
Oshno being the Lorulean representative the people of lorule being the subjects of their gods are the closest to hylians though they’ve fallen into odd ways and have come to worship monsters instead of the Devine beings who created their triforce and have cursed them to suffer. ( until the events of a link between worlds where Zelda wishes to restore the lorulean triforce.) in which things are gradual but there is still a rift between the diety worshippers and the monster worshippers. Os, has a bit of envy for hyrule if he sees it with his own eyes, it’s so lush, prosperous. He and Uli get along well enough
Novru (a lynel but potentiallshape shifter) being the monster representative as I believe monsters may have existed in lorule before Gannon’s corruptive power and the destruction of the lorulean triforce made them the easiest exploitable target of powerful and diverse minions. Novru can’t interact with the light world without feeling the deeply rooted dark magic that pervades among his people. He can maintain himself, but intrusive thoughts of destruction make it difficult, he really is a nice fellow once you get to know him though, intelligent, resourceful, and versatile. During times of peace if he is able to find a way to hyrule he likes to relax in less traveled spaces. He takes up gardening after the reformation of the lorulean triforce.
And Gannon who holds many roles demon king, 2p Gerudo rep for what he calls the underworld, or dark world. Canon would/has certainly made use of lorule/dark world to get a foot in hyrule. It is worth it to note he is the only “Gerudo” in the underworld might be counted as an incredibly hostile micro nation among the underworld beings. He claims those who submit as his citizens. Many times monsters- those who are easily pulled into his control (zant, Vaati, agonihm, Yuga) he will claim their souls and the malice they held in their hearts and his existence is even more complicated and I could fathom honestly.
I do also have a couple ideas for just plain old 2p designs for rika and nabora but I thought this was just a bit more fun I suppose