You might begin with Lincoln, Seckel, and Harrow Sweet... on OHF.87... and see what happens.
Lincoln blooms late. Available from White Oak Nursery in Pennsylvania.
Seckel is rugged and can sweeten up in a short season. Sweet when softens. Can be eaten right off the tree. Same with Harrow Sweet, a Canadian-bred pear.
Personally, Harvest Queen is my favorite pear, but it has a little bit of an acidulous twang, which you might not like, based on your description.