23 y/o french-spanish intern looking for an accomodation in east/center Amsterdam

currently an intern, but am planning to stay in amsterdam a couple of years. looking for a cozy place to stay at least for the summer, but maybe more. I work in east, so Amsterdam East or center would be best.

I am french but have lived mostly in Spain and also speak fluent english. I would love to live with locals or people who have already integrated the networks around here to boost my social life a bit. 

Other than that I enjoy deep conversations and smart people in general. I've shared flats with over 50 people in the past (accumulative, not all at once), so just saying, this isn`t new to me, and most experiences have been very positive. Hoping the next one will too!

Cheers!