I looked up a few on google for you i'm not sure where your located but hope some of these might help...
Ontario Reptile Rescue
Northern Virgina Reptile Rescue
Arrowhead Reptile Rescue
-these guys charge a small fee for the animals also they do not ship so if your not in their arrow i guess this one's not much help
This one has listings of different reptile rescue shelters around the world where you can adopt animals.
Anyways hope that helped you a little
best of luck finding a new herp