I'm looking into getting another snake sometime in the next few months, just really not sure what to get. I'm looking for something that stays on the smaller side and can live in a 55 gal. (48x13x21) for some time, if not its whole life. I'd prefer it to have moderate to high humidity needs but that's not a necessity. Not looking to spend too much, either. I've considered hoggies but I'm really drawing a blank on what else fits these parameters. So if you all could throw some suggestions at me that'd be great!

Thanks in advance!
Edit: not a big fan of ball pythons unless you can point me in the direction of an affordable and nice looking morph. lol.