What kind of music do fans of Heroes of Might and Magic like? (music genres)

I love music in the *Relax* style.
It's very pleasant music. For meditation and relaxation.
Some compositions from the game are similar to this music.

If it's not some kind of pop music, but rather classical music, then I can agree with you. As I may have mentioned before (although I don't remember exactly, maybe I didn't), besides heavy music, I also like classical music.
The perfect way to restore your nerves: spend at least three days in complete solitude, plus listen to classical music, and there's no need to say that nerve cells don't regenerate :).