Which race would you add to Heroes?

After all, the dwarf race is based on a single unit. There is no one else there besides dwarves (I'm not counting the firebird). But if you compare it to others, it will become noticeable.

I knew you would bring up such an example, but I will allow myself to note that in fantasy, there are races such as dwarves, elves, orcs, etc., and this does not mean that all units will be either elves or dwarves (as you can see, the variety is large), and regarding liches - such a character exists, but there was and is no lich race.