20 year old looking for shared accommodation in Val-d'oise

I am currently studying French in Aberystwyth university in Wales, UK. As part of my degree, I must spend a year in a French-speaking country. Therefore, I will be spending the year working as an English Language Assistant in Lycee Charles Baudelaire which is in a small town named Fosses in Val-d'oise, Ile-de-France, Paris. I am looking for housemates which are similar in age, possibly students or other young workers. I would like to live in either a university dorm or shared accommodation as I feel that this would be the best way to meet new people. I will be commuting to work via public transport so will need to be living quite close to the area and close to metro stations/bus stops/RER stations. I am very laid-back and optimistic. I am hoping to spend my spare time exploring and learning more about French culture. The purpose of my year abroad is to improve my French, therefore French speakers would be appreciated but aren't essential.