Petite clothing exchange platform

I'm cleaning out my closet and I have a lot of petite clothes. Some are branded and I've paid a lot of money for. It would be such a waste to throw these all away - I'm not sure how many people will even fit into these should I simply drop them into a donation bin or hand them to Goodwill.

Would it be possible to start a clothing exchange program? Would anyone else be interested in gently used clothing, pre-altered to fit petite figures? Alternatively, is there a good place to sell/donate my clothes to?