I'm getting a hamster today, urgent help needed 3x

Umm not sure if its actually the right board but...help me Dxtoday im going to get my hamster in a couple of hours so, i wanna know what is the best breed and how to know if its ill or something is wrong with it!

the place you're getting it from should tell you that.

Actually i dont trust the people who work in my country they would lie just for money ):