22 years old and looking for an accomodation for the summer in alicante

I am a junior student from Turkey and will do an internship in genetics department for the summer in alicante. I am looking for a clean roommate and any type of shared room in the city center is fine for me. The room should be furnished and the doors should have locks. The housing should be also close to the train or bus station to reach to the university. Also the my roommates should at least talk some english because I don't speak Spanish at all. I would like more than one room mate so in the house at least 3 people but at most 4 people should live including me. Also I need someone to show me around so a friendly roommate/s would make me really glad.