PhD renewable energy student looking for a flatshare

I'm a PhD student coming from Russia to study renewable energy systems at Potsdam Institute for Climate Impact Research. I don't speak German that well yet, but I'm learning fast so it shouldn't be a big problem by the time I come to study. I speak English fluently, though, and know Italian a bit.
I love animals, so if you have pets I would be happy to live with them! Because I love animals I'm also vegan.

I'm looking for a flatshare somewhere close to my institute. It would be perfect if I could go there by bike. I love cooking so kitchen is a must for me. I intend to rent the room for a pretty long time (like at least 6 months, and if I like everything then even longer).