For /playable/ races...
Humans (free space)
Skinwalkers
Dhampir
Aasimar
Tiefling
Changeling
Androids or Wyrwood (your pick)
I actually wrote this out for a homebrew setting, where there USED to be gods... but they disappeared.
Skinwalkers represent the creations of the animal gods, who came together and cut a deal with the God of Man to collaborate on their next creations, to try and combine the greatest aspects of man and animal. It didn't go so well, but the God of Man offered to harbor the creations and guard them, and they and hoomans have cordial relations. Treat those bug skinwalker variants someone homebrewed as being part of this, and it otherwise has all the kinds of skinwalker in it (i.e even the shark ones, the raptor ones, and the rat ones)
Aasimar are humans that the God of Man gifted to his most cherished friends, an esoteric pantheon named "the Stars-Over-Heaven." The Aasimar lived in the kingdom and over the millennia they came to be part of their own special roles: some became courtiers, others became soldiers, such and such.
Tieflings are the aftermath of a group of humans rebelling against the God of Man and dealing him a mortal blow that eventually sent him into a deep slumber. His blood spilled out and corrupted those humans, creating the first demons, who fled deep, deep into the wild. Those that procreated with others before that, though, spread their tainted line, and those descendants became the first tieflings
Changelings aren't actually creations of the God of Man. Rather, they're attempts by other gods to mimic humans. Of course, it didn't go to plan, and the various mimicries often earn pity and sympathy for their nature.
Androids/Wyrwoods (refluffed to be stone) aren't related to ANY of those groups. Rather, they're the remnants of the dwarven race. A horrible epidemic spread through them and caused them to turn to stone. With no cure, they used magic to make successors.