Almost each kind of fruit are healthy. Depends what you like or what kind of things you need for your body. I think orange and apple are good.
I like orange its very taste and full vitamins E and C, Which is recommended for skins freshness and also helps in food digestion.
See I think there is no one fruit who have all vitamins in it every fruit has its importance in it but for me I would say for apple and banana
Mango is my favorite but its seasonal and oranges, black grapes, apples, chicoo, plum, peach so many more are rich and I get to eat them often. Water melon is one the best and coconut water.