Not my own words, but: "Enjoy memes and have a good time online, but develop a solid sense of self-worth that is rooted in a reality that doesn't disappear when the battery charge is empty."
Aside from Humans, any other humanoid you guys would wanna make available? Straying away from anything demonic/monster-like.
I'm casting a personal vote for no elves/dwarves/halflings, AKA 'classic' fantasy races. They're so ingrained into the realm of modern fantasy, I feel they don't add anything particularly special, unless they fill some special role in the story. Humans are an incredibly diverse species (as we know IRL) and basing other races off niche human traits is something of a disservice. But that's just me.