24 year old law student looking for accomodation for 2 months (June-August) in Hamburg

I am required to come to hamburg for an internship this summer at a law firm. I do not have too many qualms about anything and am looking for a decent sized room either at a dorm or to share a flat with somebody (or a group of people). open to going out and seeing the city and doing things on the weekend. Play basketball if anybody is interested. looking for a response as fast as possible, in order for me to apply for my visa.