I have two tarantulas, and they are both pretty chill so far (Brazilian Black and Chaco Golden Knee.)

My favorite pet as far as personality goes has to be my toad, Gwen. She is absolutely fearless. Doesn't ever cower or show signs of stress when being handled. Sometimes when I go to pick her up, she will even strike my fingers with her tongue (I guess she associates the hand with feeding time!) Pretty ballsy for a soft, 2-inch critter.