List of groups ( in Romanian ) offering long-term and short term rentals . You can also find rooms and roomies. Erasmus are welcome.
https://www.facebook.com/groups/213923108780635/?ref=br_rs
https://www.facebook.com/groups/1657500911198407/
https://www.facebook.com/groups/cautcoleg/
https://www.facebook.com/CautOfer-chirie-in-Bucuresti-1832878593623612/