Looking for a room in an international shared flat

I'm a 29 years old boy from Madrid who has already lived abroad in a residence or shared flats and would like to have a similar experience in Madrid by sharing a flat with responsible people fluent in English. I'm a easy-going and sociable man keen on gastronomy, films, sports...etc. So there are two possibilities: 1) you are already living in a flat where a spare single room is available; 2) you are also looking for a shared flat so then in this case we could meet and create a group of 3-4 people interested in order to search for a flat convenient for us! Write me if you are interested in one of the above mentioned options ; )