In games where I have "non-humans" of any type, I go in the complete opposite direction and focus on making them actual species in their own right, instead of just humans with cosmetic alterations and ethical essentialisms. They're harder to play or depict, in some ways, but building a species from its evolutionary or magical origins through to how its social and political-economic structures develop and how its biology (or conceptual or arcane makeup) and environment shape its interactions with the material world tends to prevent the kind of crass racism that underpins most ttrpg 'races'. These are actual, alien species, not just "humans, but small, green, and stupid". Who needs goblins when you have amphibious cephalopods that historically were forced to remain in tidal zones for most of their lives prior to their development of arcanotechnology capable of maintaining their homeostasis and allowing them to travel effectively on land (and who are horrified by the "antisocial" behavior of humans because of the ways in which their societies developed due to the small amount of space in which they could live)?