I want to use various intelligent NPC races, but avoid the standard fantasy races.
Looking for inspiration, I've been reading about weird races in old science fiction. There's definitely potential there: Wells' Morlocks, Bulwer-Lytton's Vril-Ya, and weird races Burroughs created for his Barsoom and Pellucidar novels.
I don't need all of them, but having at least three or four strange intelligent races Player Characters could meet and interact with would be nice.