Gaming, news, tech, general literature. All of these are somewhat thriving, with a steady influx of posts and comments. At the same time, the userbase is sorely lacking for more niche communities. In my case it’d be stuff like poetry, yoga, religion, linguistics, meditation. Or many other communities I’d doubt they’d form a larger userbase here, at least to the degree that it’d foster good discussions. Communities where there are a larger amount of “normal people”, that are not tech-aware, and who have no interest in migrating off centralized corporate solutions. That just want a large space to discuss what they’re interested in.
This for me at least, makes it hard to completely leave reddit (or even Facebook and their groups!). Do you think the fediverse will ever reach the point where this would become a non-issue?
For what it’s worth, this is exactly how Reddit was in the early days. I remember a niche sub being something that had maybe 30-50 members, now basically every subject has a subreddit with communities in the 5000+ range.
Just give it time. If there is a particular community you’re missing, use this as an opportunity to start it over here and start getting people involved.