I'm a Philly ba in San Francisco for the day staying in union square and looking for good beer bars or bars/restaurants with good beer selections in walking distance from union square. Does anyone have an recommendations?
There are roughly 1.2 x 10^4 threads exactly like this. Spend about 10 minutes searching and you shall find what you seek.
Also, dont be afraid to take a cab. You have a $5-10 cab ride to pretty much anywhere for beer coming from Union Square. SF is only something like 200sq miles.