Facebook Market, your NextDoor neighborhood sales page or perhaps someone in your neighborhood knows a contractor who'd buy it. these methods might take some time. To note: Habitat for Humanity Restore (and other nonprofit thrifts like it) accepts donations only.

Facebook Marketplace.

Just a word of caution: don't expect to be able to recoup anything near what you paid for those. People willing to buy sinks from private individuals are looking for bargains.

Donate them to Habitat Restore and take a tax write-off if you can.