23 years old Italian student (no smoke, no pet) that looking for a Room in a shared apartament in Barcelona

I'm Jack?

I'm a 23 Italian student and I'm going to spend some months in Barcelona (exactly for 4 months from March to the end of June) for an internship in a research center. I'm a very nice and polite guy, I'm indipendent and friendly. 

I am looking for a light room in a sharing apartament to stay in this months (if it's possible in the Eixample or Gracia quartiers) with a window and a desk in order to work! 

?My budget is from 200 to 600 euros (all bills included). 

If someone can help me (or know someone who is searching for an housemate in this period), please Let me know (we can contact each other in direct message)!!