Don’t have a list handy. I label the trees, so would have to do a walk through and count them.
Maybe I had 12 - 13 peach varieties over the years. Here are some of the current peaches from memory.
Elberta, White Lady, Blushing Star, Hale Haven, Georgia Belle, August Lady, Red Haven, Contender an unknown mislabeled peach and another 1 or 2 peaches I can’t remember. 2 or 3 trees may have produced a couple or peaches, the others produced none.
Donut peach was a reliable producer and great grower, but it needs thinning, so pulled it out. Reliance peach had crappy tasting peaches. Cut it down years ago.
I was told back in '07 when I started. If you don’t spray, you will get no peaches. I almost didn’t start. Glad I did and didn’t listen to the internet advices! All my apple trees are sickly and produce little, so maybe there is something to it, depending on the trees. But for peaches, I can produce wildcrafting them. And Asian pears always produce a bumper crop more or less.
I had 1-2 white nectarines planted back in '08, but they didn’t work out. Maybe not enough sun, can’t remember. I didn’t know about sun back then. I just planted trees wherever. I heard nectarines are troublesome, so just went with peaches.
Same with apricots. Had 4 or 5 varieties of apricots planted in '08-'09. Trees grew OK, but seldom a crop in Z6. Maybe a few every 3 or 4 years, if that. Maybe an attempt at a decent crop from 1 tree every 7 or 8 years. Some varieties of apricots never produced an apricot in 12 or 13 years, so cut them all down and replaced apricots with all peaches.
Wish I had more Contenders!