While larger, more general communities are thriving on the Fediverse - I'm missing out on the niche communities

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...