One of the three things that instantly grab my attention are witch focused stories. I love magic and witches even more.
Anyway I remembered a random Google doc where I was trying to scrape info together from BURN THE WITCH (manga and anime movie) and speculation using info from BLEACH and you're gonna listen to me yap about it
Soul Society and Reverse London
The Soul Society in BLEACH is obviously just the literal afterlife. Maybe only the Japanese specific one considering that hell is apparently an actual thing in that universe.
BLEACH had humans with spiritual abilities. So RL is probably just a mirror dimension that has all of the humans with spiritual abilities. Bruno did make a comment about how since Macy is a watcher, she would've ended up in RL sooner or later. On that topic: Ninny and Noel appear to be humans who used to be watchers and then became witches. I don't think that either of them actually live in RL but rather in Front London
It's known that the Eastern and Western Branch exists. With BLEACH taking place in the Eastern one and having a lot of Japanese influence while the Western one is in Reverse London. Military wise the Eastern one has the Gotei 13 and the Western one has Wing Bind.
Pretty sure that all of the Dragons are just spirit life forms. They can absorb human emotions and become Dark Dragons. The Märchen are their progenitors.
Hollows seem to be human souls that were basically consumed by their own negative emotions.
They seem similar, especially with all that negative human emotions stuff, but are distinct from each other. Dragons are their own life forms - hence my guess that they're like spiritual animals or something - while hollows are just murderous human souls.
No hollows in BURN THE WITCH
Assumption: it's a local problem. Basically there are different branches based on what kind of negative spiritual life form you are dealing with.
Shinigami's Zanpakutō = Witch's Witch Kit
Balgo somehow made that trumpet into a sword I'm assuming that they're the same
Not sure if Wing Bind has an equivalent for Hakuda or Hohō since they seem to be more magic users (what a surprise since they call themselves witches and wizards) so it's possible that this stuff is included in their magic
BURN THE WITCH also has the release code that Bruno used. It looks like they're something like summoning magic
While the Gotei 13 has their divisions and seated officers, Wing Bind seems to have 8 different units with set squads and the squad being led by a chief and being made up of two people teams.
I think it's possible that there are 3 more units since Wing Bind uses one of the zodiacs for each unit.
I'm also assuming that Wing Bind's equivalent of seated officers is the umbrella thing since Ninny and Noel are second and first umbrella respectively. Also Ninny's comment about being the strongest Pipers. That might just be exaggeration but I think Noel would've commented about that and Ninny doesn't seem to be the type to lie about that considering she does want to be a Sabre.
Inks - magic circle - ♉ taurus - blue? - Bruno Bangnyfe
Anthems - music? - ♑ Capricorn - blue purple? - Roy B. Dipper
Sacreds - ritualistic stuff? - ♒ aquarius - yellow - Cquntnire Milieve
Pipers - gun/pipe thing - ♈ aries - red - Tronbone Takkinen
Sabres - swords? Just combat specialists? - ♏ scorpio - black - Sullivan Squire
Patchworks - Research?? - - Saka Rynn
Billionaires - taxes. - ♌ leo - green - Harry Shayk
Gallows - jail/execution? - ♎ Libra - grey brown - Wolfgang Slashhaut
Missing zodiacs are ♋ cancer, ♐ Sagittarius, ♓ pisces, ♊ Gemini, ♍ virgo