21 year old girl looking for accomodation in Rome

I'm moving to Rome in September, and I'm looking for a shared flat in the center of Rome, if possible in the historical center. I would like to have not only spanish roomates so that I can improve my english and maybe learn better the Italian. If you don't have any accomodation to offer but you are looking for something similar, contact me: if we can be four or five people (the more people, the better!) looking for the same thing, maybe we can rent a whole flat for ourselves!