In central Minnesota, I would plant Norland, Whitney, dolgo, chestnut crab, kerr, haralson, and NW greening. Then plant some more dolgo seedlings for rootstock and topworking in future years. In a few years, I maybe able to add Kerr, wickson, kindercrisp, breakey,and golden hornet to the list.
This spring, watch for the blooms from wild trees in your area. mark them with ribbon and see what they produce and when they drop.
There are some real gems for wildlife trees in our wild stock!
I have seedlings that are still holding fruit and there are early varieties that drop in late july in some years.
You have a much larger variety of choices in your location than those of us further north. Pears have not worked for me.