I'm looking for a snake with these characteristics.

[yoquese]

Hello, first of all sorry for my english. I want my first snake and i would like someone who knows to guide me.

The ideal snake for me is:

-No venomous.
-Not very long and especially not fat. If the snake is long but thin its ok for me.
-Have a differentiated head of the body. I dont know hot to explain it very well, but a perfect example is a boa constrictor.
-A very active snake(the opposite of ball python). The aggresiviveness its not a problem for me and i dont care if he bites me.

I have the money and i have the desire lo learn and can keep the snake in good condition.

Thanks.