D&D doesn't need dozens of bespoke races (or ancestries, or species, or whatever you call them at your table.)
The "Custom Lineage" rules in Tasha's Cauldron of Everything + the examples already printed in the PHB are all you will ever need to create any number of balanced, unique, and interesting characters for your campaign.
You want to play a siren? A half-medusa? How about an ooze? Half-dryad minotaur? Give me ten minutes and I'll have it ready to go. Go roll your stats and choose your background in the meantime.