Arugula and sunchokes will not fail you. Both have their limitations. Asparagus is easy in certain climates and with enough space to dedicate to it. Basil, leaf lettuce, parsley, and most vegetables do well if you plant them! That is the key! I have found the tiny “Matt’s Wild” Tomato variety to provide volunteers consistently and if one were to provide them their own space and be more intentional, I think you would have a permanent crop.