Visit a nursery (not a store with a garden center) and buy the biggest fruit tree you can find. Most are about $150.
Look at the structure of the tree, one stick in the middle with branches spread evenly on all sides is best.
Pay for the nursery to deliver it and plant it because digging a large hole is consuming. When they plant it, it also typically comes with a warranty – double check.
Know where to plant your tree – full sun? does it need shade? How big will it grow?
Before you leave the nursery know how to care for the tree. Usually you will need to deep water it until it is established and then put it on a regular drip irrigation.