you can tap em for maple water and then boil it down for syrup. its pretty easy to do-- its just that no one does it.
youre going to have to think long-term with that farm. even if you dont get to benefit from the tree, your kids or successive generations will, and youll also be increasing the value of the property if you ever sell it.
fruit trees youll want:
blueberries (need acid soil and full sun)
jostaberry
serviceberry
mulberry (look into illinois everbearing)
fig (one variety might be ok-- rest can grow there, but youll have to mulch like hell and plant it south facing and wrap it up with burlap like theres no tomorrow
persimmon (theres one that should work up there in zone 5 or 6)
elderberry
aronia (vit. c)
willow (get one-- the plant has natural rooting hormones in it which will come in handy later on if you want to try to root some cuttings)
pawpaw (check to see if this clears your USDA freeze zone)
pear, apple, asian pear, cherry (sweet and tart), plum...
do NOT go for those basic crappy cultivars like red delicious. orange pippin is supposed to be great, but i havent seen it for sale. honeycrisp, jazz, and fuji are all very good. youll have to do your homework so you can get fruiting varieties over a long period of time. same goes with the pear, plum, and cherry.
raspberry/blackberry will grow easy, but youll need to prune them if you want a good yield.
oaks have edible acorns for acorn flour. get used to working with it. free food that all you have to do is collect it from the ground. if the squirrels come around, youve got a side dish.
i think theres a plant there called new jersey tea.... that should grow there. its supposed to be a good tea substitute.
with the cooler weather, i would work on growing mushrooms. check out how sepp holzer does it. yields are good. if i was there, id innoculate logs with the chicken of the woods mushroom as well. great taste.
osage orange is useful, but not edible. witch hazel will grow in that zone. id look into growing american ginsing if the conditions are right. get a male and 2 female ginkgos. slippery elm.
this should be a separate topic, but its tree related, so....
if youre starting some kind of community/commune there, you should browse this selection of medicinal plants:
https://strictlymedicinalseeds.com/ or get the catalog.
dont count on hospitals to fix you. youll be on your own, so youll need someone there to make your own natural medicines.