Feeling as you do & under the circumstances, there's nothing "wrong" with wanting to rehome these snakes. I assume your family basically lost interest, & hey, it happens.
Besides this forum, you might also try local ads, & also check with veterinarians in your area- they may know someone, or even someone on staff might be interested. Some vets also have a bulletin board for pets needing new homes, so that's another way to reach out- & at least you'll know that anyone who responds is someone who already takes their pets in for vet care.