These apple varieties with good taste have all been eaten:

Ruby: The taste is crisp, juicy and moderately sweet.

Jin Shuai: It tastes crisp, juicy and sweet.

Red Star: The taste is crisp and juicy, sweet and sour.

Gala: The taste is crisp and juicy, and the sweetness is moderate.

Red snake fruit: crisp, sweet and juicy.

Personally, I don't like the sweet taste, but I also like the sour taste. So I personally prefer Red Star.