27 year old boy, looking for accommodation in Toulouse

My name is Haris and I am coming from Greece. I am 27 years old and I speak English and German quite well. I am going to work at Toulouse and I am searching for a residence. Particularly, I am looking for a studio of about 20-30 square meters and I would prefer it not to be far away from the centre of Toulouse. I need it for 2 months more or less, whereas I am not able to afford more than 500 euro per month for the residence. I do not have any problem sharing rooms (kitchen, bath, etc.). I have already lived abroad and had other roomates.