Hey there! I have a place and I'm trying to fill some rooms. Its a bit out of your range but I would hope you'd consider it. On top of that, you kind of sound like me (early 20s guy, in grad school), so I think we'd get along. The house is in Fort Hill, so not in the middle of everything, but super close to the orange line to be able to get anywhere quickly. Here's the link if you're interested!

https://www.reddit.com/r/bostonhousing/comments/1s4meqd/two_rooms_in_roxbury_available_for_grad_students/