26 year old student from Berlin looking for accommodation in Sofia for 2 months

Hi,

i am 26 years old, and I currently living in Berlin studying culture studies. I am still in germany so the phone number still needs the german dial code 0049.

I got a great internship in Sofia and I am looking for accomodation for 2 months. I would arrive on November 5th, and I would stay until January 5th. 

I would love to live in a shared social flat, so I would get to meet new people and get to know the city better. I am very much looking forward to be in Sofia and I would like to get as much out of it as possible. 

Also I love cooking, nightlife (especially electronic music), going on day trips, travelling and just hanging out and watching movies :-) 

The internship will take place near the subway station Frédéric Joliot-Curie (Istok/ Isgrev) 

So it would be great if I can reach it without transferring too much. I was told to look for Serdika and Musagenitsa? I personally don't know my way around yet, so I am happy for any suggestions. 

Cheers!