I have Jungle Carpet pythons, Bredli pythons, super dwarf reticulated pythons, Various boas, and a group of rattlesnakes. I have a few odds and ends but those are the types I work with most. I also keep a pair of Gouldi Monitors and a trio of Ackie Monitors.
If you are considering raising snakes for skins it's not worth it cost to feed and house is far too high. I get most of my exotic skins from friends who are in the trade that have animals that die.