Follow on crop

Just looking for ideas what to plant once I’ve harvested the early potatoes?
I’ve got loads of brassicas , carrots , swedes , parsnips etc planted , just don’t want to leave bare soil from June onwards

Late sowing of peas, dwarf French beans or some stir-fry greens such as https://www.simplyseed.co.uk/salad-leaf-seeds/salad-leaves-oriental-mixed.html

I did kohlrabi last year. Can also do things like leeks, florence fennel, french beans, beetroot, chicory, celery, chinese cabbage etc