Playable Races

Base (Player's Handbook)

 * Dragonborn
 * Dwarf
 * Elf
 * Gnome
 * Half-Elf
 * Halfling
 * Half-Orc
 * Human
 * Tiefling

Volo's Guide to Monsters

 * Aasimar
 * Bugbear
 * Goblin
 * Hobgoblin
 * Kenku
 * Kobold
 * Lizardfolk
 * Orc
 * Tabaxi
 * Triton
 * Yuan-ti Pureblood

Mycenia Homebrew

 * Ratfolk
 * Vampire

Other Sourcebooks

 * Aarakocra (Elemental Evil Player's Companion)
 * Centaur (Guildmaster's Guide to Ravnica)
 * Minotaur (Guildmaster's Guide to Ravnica)
 * Tortle (Tortle Package)
 * Warforged (Eberron)