Out of everything out there if I could add anything within my space limits it would be
Many many many California Kingsnakes (localities and morphs)
San Bernadino Mountain Kingsnakes (i LOVE these guys, always used to catch them at home in cali but now here up in Canada they are more than hard to find it seems!)
Mexican Black kings, I have one male would like a few females
And honestly thats about it for me! My tastes in snakes run pretty slim and cheap aside from Olive pythons! LOL I like all the colubrids really but cal kings are a fav of mine.