Volo's Complete Subrace Handbook

Publisher Blurb: Revisiting favorites from previous editions, this handbook is designed to give DMs and players a wealth of new options when it comes to character creation and advancement. Version 1.0 takes the handbook to the next level, with an incredible 50 subraces, 30 racial variants, and 32 racial feats for your 5e D&D adventures. Subraces and variants for Aasimar, Bugbear, Dwarf, Dragonborn, Elf, Firbolg, Genasi, Gnome, Goblin, Goliath, Grung, Halfling, Hobgoblin, Human, Kenku, Kobold, Lizardfolk, Orc, Tabaxi, Tiefling, and Yuan-ti. The subraces and revisions are designed to be about as powerful as half-elf, elf, or dwarf subraces.