You can search nostr for keywords using damus, nostrudel, nos.today. Iris, primal etc.

See also permaculture and homesteading community. Sometimes they use the following hashtags: farmstr, permies, permaculture, homesteading.

There is also a Christian community.

If you dont see what you are looking for start it, and post consistently! Nostr is still in bootstrap phase, and folks want to consume and reward quality content.