Grandpa’s Orchard is a local (Coloma, MI) nursery that sells a good variety of grafted fruit trees, specializing in apples, peaches, plums, pears, cherries, apricots, etc. Group members have reported that their plants are of very high quality. From their site:
Grandpa’s Orchard® is your home for the biggest selection of bareroot fruit trees for your backyard orchard or garden. We offer hundreds of varieties on a wide selection of rootstocks— dwarf, semi-dwarf and semi-standard— likely the biggest in the country. All of our apple, pear, cherry, peach, nectarine, apricot, and plum trees are high quality and backed up with great service and guarantee. Check out our wide selection of hardy, heirloom, disease resistant, and other varieties.