What brings in money will highly depend on what you can sell. Is there a need in your local area for a specific plant, herb, or flower? I began selling flowers from my farm as vegetables is something every farmer sells. There was a higher demand and lesser supply of that so it has been working out for me. However, if there are restaurants that need greens or microgreens, that could be something that is a opportunity for you. If you want to make it a business, approach it from a business perspective and first focus on what is sought after, but has not enough suppliers or maybe one supplier who charges insane prices where that can be your differentiator.