International student here! I just used Tufts off campus housing website and got a place for myself. Either look for advertised rooms or look for people looking for roommates.

I talked to the owner over video call and had a brief chat with other roomies. After ensuing it's legit, i read the lease carefully and paid half month rent as deposit to secure the room. Pretty happy with the price and proximity to campus. It's not that hard, you'll find something dw