What about Apricots? They grow well in zones 5–8. I love Apricots. They are amazing fresh or dried or in jams and jellies. I am in zone 9 here in the Sierra Nevada foothills of Northern CA. and we have several varieties of apples, apricots, blackberries, mandarin oranges and Navel oranges. maybe research the mandarin varieties, they are so delicious but might be to cold for them in your zone.