Check out Curtis Stone on YouTube. He has probably the best set up for market gardening on small plots. It is a lot of work but can be profitable.
If I were in your shoes, I would determine if I need to money to live or not. If I don't need it, then I would grow whatever I wanted and sell the excess as its available. If I did need the money, I would only grow those vegetables I could turn for a profit. Microgreens tend to yield the highest profit margin and so do agri-tourism items (pumpkin patch, u-pick fruit operation, etc.). Also, marketing is a big portion that farmers tend to forget about. If no one knows you sell the rarest breed of the most sought after vegetable, you don't make a dime.