The best advice I can give you is to sit down and think (or list out) what you like about snakes, what you want in a snake, what sort of expectations you have of the snake and your ability to care for it. That will help a lot before you end up with a snake that maybe isn't what you thought it might be.

A lot of snakes end up in rescues because people don't take this vital step. Burns that "grew too big". Colubrids that are "too nippy". BP's that are "too boring" or "won't eat for me". I'm glad you're taking the time now to think about this decision. This time to make the right choice for you will benefit you and your future snake.