I am not that experienced with alot of different types of snakes, but here's my thought on your question. The amount of handling a snake will tolerate depends upon the snake itself. From reading many posts on here, some peoples snakes seem to tolerate handling a lot better than other people's. Some will tolerate being handling more often or for longer periods of time, some of them won't. My suggestion is to get a snake that you like, and gradually handle it more and more. I don't think that you are going to find a snake that is going to tolerate basically hanging around your neck 24/7, but if you work with a snake, you can gradually get it to a point where it will tolerate being handled, and may even tolerate being handled for a semi-extended period of time (not hours and hours upon end, but not just a few minutes here and there also). Keep in mind too, that baby snakes tend to be a bit more flight driven than slightly older snakes who may very easily settle into a regular handling routine and not be overly flighty. My two suggestions, from my own experience, would be balls and corns. Mine have been doing real well as far as handling, none are at a point where they will tolerate being handled for longs periods of time before they try to flee, but at the same time all of them are still babies, basically. I hope that this helps you out, maybe others with more experience in various types of snakes can help you out a little more!! Good luck!!