I myself love reptiles. I have 2 tortoises, Dexter and Clyde. There are different reptiles that are endangered and are in need. Here are some ways to help:
1. Adopt a Reptile from your local Zoo.
Zoos have programs where you can "Adopt" a Animal from the zoo for a certain price and all the money goes to the zoo.
2. Donate to a reptile conservancy organizations.
3. Clean Up
Help stop pollution. This helps all animals including reptiles.
Here are some links to websites that help reptiles: