[@Combo move]

I don't think you'd realistically have any of the derro. Maybe some other "dwarves" like those in Vinculi, but the derro are pretty much exclusively in inland Moravia.

The gnomes could plausibly have a small to medium portion of the population in any nation. They're this world's equivalents of the Jews with Mostia being their Israel that was taken by Ceresia a few centuries back.