Half-Dragon (5e Race Variant) - D&D Wiki

Variants: Dragonborn (5e Race Variants/Subraces), Blackbando's Homebrew Wiki

Azer, Variant (4e Race), Dungeons and Dragons Wiki

Can you make a character that is half-elf, half-tiefling for Dungeons and Dragons Fifth Edition? - Quora

Children of the Dragon, the sequel to Half Dragon Player Race (see link for full 67 pages work) : r/DnDHomebrew

Couatl - Monsters - D&D Beyond

What D&d Race Class combo needs to be back burnered? The mysterious cloak wearing elf badass that doesn't want anyone to know they are an elf, for example - Quora

D&D 5E - WotC's Jeremy Crawford on D&D Races Going Forward

Monsters in Dungeons & Dragons - Wikipedia

Gria (5e Race), Blackbando's Homebrew Wiki

Half-dragon, Forgotten Realms Wiki