Not really. I'm mainly waiting for some motorcycle communities, telescope/astrophotography ones, Silmarillion/LOTR/StarWars/StarTrek memes, along with some other minor ones. Some of these technically exist but they are low on member counts FOR NOW, literally growing by the minute though.
Also the search function seems to be a little off so sometimes it doesnt always list the correct number of active users for a community if its a community from an external instance. Also not all communities show up/are indexed quickly. But im sure that will improve relatively quickly