22 year old male looking for accommodation in Freiburg

I am a Portuguese masters student writing my dissertation. I am not interested in parties nor in bringing visitors home. I enjoy living in a clean, quiet environment and will put an effort to maintain my living space. Having some money saved I will always be able to pay on time.

In addition, I'm fluent in English and am currently learning basic Deutsch.

I am looking of anything in (or in close proximity to) the city of Freiburg to attend the university. I will pay up to 450€ for a room, electricity, water, heating, garbage and internet fee included.