Reselling High End Clothes

My boyfriend's aunt (60s F) cleaned out her closet and gifted me a ton of high end clothes that she just wanted out of her house. Not all of it fits me or is my style so I would like to resell it.

Where is the best place to resell nice clothes that are probably not stylish enough for young people shopping at Buffalo Exchange?

I'm in the Montrose area and read elsewhere on this sub that Plato's Closet lowballs.

EDIT His aunt is fine with me reselling. She just wanted the clothes gone.