it sounds like you just got your other two snakes..? if so, give them about a week to acclimate themselves to their new surroundings, new sounds, new smells etc before handling them. they're most likely stressed from the move. there really is no best way to hold a snake other than support the majority of their body, and they generally find somewhere to wrap their tails around while they explore your body. don't just hold them with one finger or hand depending on how big they are, it could hurt their tummies with all their weight supported by such a small area. my boa always wraps her tail around my bra straps and wraps around my neck while resting her head on top of my hair. my adult ball python usually wraps all around my neck and hangs down on my chest, and both of my baby bp's generally wrap their tails around my wrist or fingers and wander around, or slide up my arms and wrap up in my hair.
yes i did get get the 2, they are about 2 years old...and are about 2 feet long may be a little longer....they are about as big around as a young rat at the fattest part of their bodies, they have what i think is retained eyecaps...so i dont know how well they can see...and i dont think they were well taken care of...i just dont want to stress them by holding them...and now that they have been moved twice in the same week i think that the one is agitated and stressed a little more...i dont plan on try to handle them for a little while longer.