Your account already looks viable for sponsered posts (but obviously only if you want to). I personally have a lot of connections with people and brands that help me get these deals. I like this approach more since I don’t want my business email spammed full with annoying fanart and requests for money. But if you don’t have these connections then I would recommend putting your business email in your bio and the deals will start flooding in. There isn’t a simple answer to this question but I hope this helped!