MA Taylor is my go to source for art selling and buying questions. He is very approachable and extremely knowledgeable. He manages a couple of Facebook art groups that are very supportive and encouraging. I don't think I have seen a content creator as engaged with the art community as he is. Every week he provides in depth insights about the artistic world. Scroll below, follow the groups and subscribe to the blogs.
His art is also incredible. So check out his Art Store (links also below). Also, clicking on the pictures goes right to prints.
My three favorite pieces are: