Savus are tiny but can be very nippy as babies. I have 1.2 youngsters, fortunately they're rather "clutzy" and don't have much to speak of in the way of teeth, so on the very rare occasions they do connect it doesn't hurt.

My BRB's are the same way, except they usually hit what they're aiming at. At least they mellow out quickly.

If you want to give boas a go try some of the smaller localities, Tarahumara and Sonoran females top out around five feet, the males are shorter. Generally it's frowned on to make morphs with them, people like to know they're getting pure locality lines.

Dumeril's boas get bigger than the smaller BCI's but are more likely to be couch potatoes/lap snakes, they're not at all hard to handle. There's also a line of dwarf dums available that stay even smaller.