I took a quick peak and I created an account too.
I don’t see too many communities for individual series, except for Harry Potter. I can think of a few that I know I’d like:
Lord of the Rings Wheele of Time GameofThrones The storm light archive Mistborn Cosmere Cremposting - this is a shit posting sub of the above three TheExpanse
Yeah, I’m pretty basic.
Spudward is on a fucking crusade