Where to begin lol. Rats snakes (my first snake was a Texas rat) boas, corn snakes, Gaboon vipers, cal kings, and hog nose for snakes

then we can get into tegus, bearded dragons, a lot of the Australian monitors, blue tongues and sungazers.
for turtles I like easter painted, red eared sliders, and alligator snappers.

My reasoning behind all these are based on any combination of looks, temperament, and wow factor