First of all, it depends on your family environment. There are differences between north and south. If it is a rural courtyard in the south, basically most fruit trees are planted, such as litchi, longan, pomegranate, orange, grapefruit, orange and so on!
Potted kumquat
If it is in the north, we usually plant some grapes, persimmons, apples and the like. Many of them are actually not planted. Leave them in the yard to dry!
If it is a balcony, first of all, it depends on whether the light is sufficient. If there is enough light, you can plant some apples, oranges, pomegranates and grapes, but don't expect to produce much, because the roots won't grow and bear too much!