Following stuff like #farming, #cows, #cowsofmastodon etc should start to pop up more relevant stuff in your home feed.

If you click on those now you might not see much cos your server is new but over time it'll fill up.

(I am no farming/cow content expert so there may be better tags but people are using these ones at least)

#sheep are also popular and you''ll want #defaidodon which I include here because you'd never guess that one on your own :D