It depends alot on what you are looking for. If you want a snake with some girth but not all that long a Ball python would be one to consider. If you want something smaller get a corn. GTP can certainly be nippy at times. I have 10 ball pythons and never been bitten by one of them but I have one guy that will hiss when I first touch him to get him out. Good Luck.
:and i think i have found it a green tree python seems good for me do they tame easily it is not my first reptile snake or even python but i love there looks also can you hold them at all or is bad because i never see pics of them being held,