I have attempted cherry and avocado, both ended in a bad ending. They both leafed, flowered, and died. Those 2 are the hardest to root from cutting.
Fig, guava, and pomegranate are easy. You can cover them with plastic or clear bucket for humidity. If done in the cool season, you just stick them in the ground or soil.
Grape, nectarine, apple, mandarin, Asian pear, and grapefruit are middle difficulty. Growth hormone was likely used for most. The grape I grow from seed, I got 100 success. The grape from Lowe’s, 35 percent success. mandarin and grapefruit take a long time and are slow to grow. I did one Asian pear and it grow well, though the one of the root griddle the trunk. So, sometime the roots don’t grow the way you wanted. I got 3 nectarines from cuttings. They can flowered and fruit in the 2nd or 3rd year. The apple, I did something different. It was badly damage by a weed wacker. I cut the 5ft young apple tree. Put it in a 4ft pvc pipe with the top expose. Stick both the PVC and apple tree into the ground during Fall. It grew flowers and leaves in Spring.
I stuck a thick hard wood cutting of Toka in the ground next to a rose. I used no rooting products. It is beginning to leaf out, but I will not know if it has rooted until it warms up more. While much of the East coast has dealt with drought, my N Ohio location can’t seem to get 3 days without rain so that I am not planting in clay muck.
Applenut used to be a participant on this forum and was a volunteer at helping small farmers in a tropical part of Africa grow apple trees to sell their apples as a cash crop. His root stock of choice was Northern Spy which can be propagated from cuttings. Spy is one of several varieties that develope root primordia on trunks and other larger wood. I suspect those varieties that share this trait, which include some strains of Red Delicious, Esopus Spitz, Fameuse, and all the Gala clones I’ve grown, have some ability to root out from cuttings- perhaps some more easily than others.