I know there are a lot of varieties of different fruit tree's out there, I would appreciate specific names of fruit tree's not just apple but the type that you personally know taste REALLY good. Thank you =) This is for zone 7 OKLAHOMA

Besides most apples, you can grow in zone 7 :
Apricots, Cherries, Figs, Nectarines, Peaches, Pears, Pecans (Nuts), Plums, Prunes (If that really tastes good is up for question).

Some small fruit plants good for zone 7 are:
Blackberry, Blueberry, Currant, Grapes, Kiwi, Marionberry, and Raspberry.

We live in a zone 6, I have an Italian plum tree. It is a young tree but produces loads of fruit.

Last year I canned some and had plum jelly all winter long.

blackberry and grape trees are great in zone 7! Ive tried apricots before but they just dont grow as well. Make sure you seperate them accordingly