On my current property I had fruit trees and between them I planted red current, goose berries and black currant and they did well. I had to move one of the black currant's to the end of the row as it was too tall and reached the tree branches.
I would not grow anything that needs to be dug out and soil disturbed too much and also something you can mulch around.
I like the recommendations and I will use those for my new orchard.
