Have you tried Etsy?
Google "art fair" and also "art league" and your location and see what you find. An art fair is usually a one-time deal where you pay for booth space. If it is "juried" you will need to send samples of your work to be accepted. It's a bit more work, but the audience will also be a bit more narrow/focused than at a flea market.
Local art leagues often offer galleries where members can sell their work. You may need to pay a membership fee or volunteer hours in order to participate.
Our local farmers market offers booth space to artists and craftspeople. You may check to see if some in your area do as well.
Local (not chain) cafes, coffee shops and hair salons will sometimes allow artists to hang (and sell) work in their space.
If you work is high-quality you might consider contacting local interior designers/decorators.