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

Dragonfolk (5e Race) - D&D Wiki

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Half-Dragon (5e Class), Blackbando's Homebrew Wiki

Tarrasqueborn Playable Race New Player Option for Dungeons & Dragons Fifth Edition – DMDave Publishing

Faerie Dragon (5e Race) - D&D Wiki

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DnD Bugbear 5e race guide