well if your moving into a studio your need to think twice on what kind of dog you want. Cos certain small breeds need a lot of exercise to burn all the energy they have in them. So if you're going to be busy, your gonna need to study on which small breeds could handle your lifestyle. Also if you get a puppy, no matter the breed, your going to have to find a way to burn off all its energy.
A Maltese. They do not shed and are very lovable lap dogs. If you are sitting or lying down, they will always join you. If you don't want to brush its long hair, just give it a hair cut twice a year and it'll be just as happy.