23 year old man, looking for accommodation in Barcelona: 1st oct - 31 december

I'm a young polyglot and will start an internship at the UIC. I blend in well, as long as roommates are trustworthy/respectful and can behave like adults/students. I would like to rent either a studio, or a piso compartido, as long as basic accommodation such as kitchen, bedroom, etc., are in good state. To me, nationality is not an issue, so roommates from all parts of the world are excellent. Being a linguist, all languages are welcome too!