Q.No Fruit on Peach Tree
I only had a few peaches on my peach tree. Last year I pruned the trees back. I have 3 of them this year and they have not any peaches on them.

Certified GKH Gardening Expert
It is likely a pollination issue. These articles will help:
https://www.gardeningknowhow.com/garden-how-to/beneficial/insect-pollination-process.htm
https://www.gardeningknowhow.com/garden-how-to/beneficial/creating-a-pollinator-garden.htm
It may also be improper pruning. Make sure that you are properly pruning the tree. This article will help with that:
http://pubs.ext.vt.edu/422/422-020/422-020.html