Larian Studios Forums Baldur's Gate III Baldur's Gate III - General Aasimar are nowhere to be found in 5E right?

Eh. I think they're "everywhere" because in my experience people love to play them. Whether they are "everywhere" in the world is setting-dependent. Including them as a PHB race was just giving people what they want.

I'm hoping the Paladin origin character ends up being an Aasimar. I think Aasimar are really cool, and I hope they are implemented.

There is prototype Aasimar in the DMG given as an example of how the DM can add races. There is a fully developed Aasimar, with three subraces, in Volo's Guide to Monsters.