I am harvesting onions every day and am working out plans to plant new crops.

You want to make sure that you do not plant onions year after year. You want to wait 3 years to plant onions there again.
I believe in a solid rotation schedule to feed, use, and replenish nutrients in my soil. It is a good way to keep issues out of your vegetable plots like pests and diseases. In addition, it prevents your soil from becoming exhausted from nutrients. Another factor I need to keep in mind is that some plants inhibit the growth of other plants, and onions are like that.
Planting pole beans after onions is not a good idea as the onion will inhibit your pole beans from growing, though bush beans are fine.
Onions are light feeders so you are fine to add heavy feeders like tomatoes, squash, pumpkin and cucumbers in there, you can even add beets or carrots.
Now it is time to let these onions dry on a drying rack that i still have not made but it is coming! I promise!
What do you think I should plant?
