Dog rescue recommendations

We saved a dog from the streets a few weeks ago before the cold and no luck finding the owner without a microchip. We cannot keep him, and do not want to take him to a shelter. Does anyone know of rescues that can take in a good boy?

He’s a male neutered lab mix of some kind. Hard to believe no one is missing him as he’s well groomed and trained. Good with dogs and cats.

Thank you!