I agree with the people saying Green Cheek, it's the best in the area and you have the benefit of being able to walk over to Gunwhale (another brewery) and also WIP (for coffee/wine), Mellowist (a cool plant/pottery shop), and The Inconvenience Store (japanese knick knacks and dried flowers),…
People have mentioned the four I usually go to on Randolph (Gunwale, Green Cheek, Bootleggers, Salty Bear). Salty Bear has the added benefit of having a pedestrian connection to the back of the Camp, which also has a wine bar called Wine Lab.