A lot of the anime-related communities have consolidated over time to the ani.social instance. There are historical reasons for this (largely due to hostility from the ml admins), and if you want a brief history for just the general anime community, I previously wrote a post here.
That being said, the ani.social instance has been growing with new communities being added. Here are the more active ones:
General Communities
Series-Specific Communities
- !dungeonmeshi@ani.social - Delicious in Dungeon community
- !frieren@ani.social - Frieren: Beyond Journey’s End community
- !nokotan@ani.social - My Deer Friend Nokotan community (currently airing show)
- !dandadan@ani.social - Dan Da Dan community (show airs this fall)
- !dragonball@ani.social - Dragonball community
Misc.
- !vocaloid@ani.social - Very new community just started by @hisao@ani.social about vocaloids. Check it out!
- !vtubervids@ani.social - Community to discuss and share videos from and about vtubers
- !seiyuu@ani.social - Community about Japanese voice actors behind the scenes
Thank you for the list!
!animepics@reddthat.com – people mostly post fan art these days, but discussion of anything anime-adjacent (anime/manga/VN/hentai/etc.) is explicitly allowed too. In the past I’ve posted amusing/interesting stills from shows I was watching, custom image composites, screenshot comics, and things like that.
!anime_irl@ani.social – “A community for sharing relatable real-life situations depicted in anime.”