Terrans, elves, ghosts, orcs, orcs, dragons and Sai Ren are the most important.
I don't know about other planes, but if they are different planes, it is either an imaginary world like going against the sky or the mainland, or a unified western theme.
There are also themes of Athena and Roman epics, but the themes of Athena and Roman epics are probably the races like western themes, but the environment is ancient Rome or Athena, not Europe.