I haven't had a problem ftmp. I sort by all>new/top day/hot/active and subscribe to what interests me on a whim.
Then if there is something specific, say poetry, I type "poetry" or "poet" in to the search and I get all the communities with that in the name. Subscribe. All of em.
Over time I naturally have a feed of my own making.
But right now, I am just sorting all and collecting communities and talking to people, and when finally there is more people, I will sort by subscribed.
I think the issue is just early stage social media being built ground up, and we're all still figuring out what this place is even gonna be.