Both of my gopher snakes are very laid back. The only time I get a bit of a hissing is when I'm feeding my san diego. I have an excess of smaller prey items, and he'll hiss a little bit during feeding. At that point he's already got one in his mouth and I've dropped the second one in the tank (f/t).

Gophers, Bulls, pines can all be calm snakes and still give you a bit of display action now and then. They also tend to be diurnal snakes, so you may see more of them during the day.