Things that are honestly You. If you do art, post art. Photography, book reviews, cooking, stories, code, favorite places to eat, memes, quote, etc. Anything goes here. If someone values what you post, you can get a zap.You are your own algorithm, so it takes following and engaging and time.
I wouldn’t come in with the mindset of a side hustle, though. If you produce value, someone will pay for it, but I think you’ll do better all around putting out what’s uniquely you, compared to asking what people want to pay for.
My 10 sats worth of #advice 😬