I'll go with the Alzabo from Gene Wolf's worlds. Mimics the intelligence of anything it eats and begs its prey to be eaten in the voice of (already eaten) loved ones.

The people who submit, don't do so out of momentary stupidity, but because the Alzebo/Loved Ones make such a compelling case that the only way to be reunited again is to join the beast.

I don't know if you would call ~~Hobbits~~ Halflings monster races but they are my favorite. I love the way Eberron did them with their mark of hospitability so they have special magic to make everywhere more comfortable and good things just happen to them. I love how they just took the fearlessness and everything good from Kinder and just wrapped it into regular ~~hobbits~~ halfings.

Tiefling

I love goblins and lizardmen

Fine 😔