There is [email protected] but generally you wanna stick to the bigger places like [email protected] due to the simple fact that the usercounts just aren't that big, and that gets worse the more you subdivide a given fandom.
I do try to cross-post to smaller communities, nothing stops you from posting to every suitable community. That way, the smaller places have a way to grow, even as they semi-hibernate in terms of activity most of the time.
Also, [email protected].