Fairmount Bagel
Warm bagels: ready whenever you are (b,l,d; $)
Like St. Viateur Bagel a block away, Fairmount is a tiny bakery that never stops making or selling fresh chewy local bagels.
Even so there's a line here for much of the day, particularly around breakfast, and both the staff and other customers are a little unforgiving towards ditherers: the all-dressed bagel is a classic option here.
It's counter service only, but there are benches along the street.