I'd look at SF Gate (SF Chronicle's site) restaurant reviews, Yelp, Michelin and Zagat. You'll find the same general cluster of restaurants towards the top.

I'd say start with the with Michelin Restaurants:
http://www.michelintravel.com/method...d-restaurants/

And then look up SF Chronicle's Top 100 Restaurants (done annually) and then dive into Yelp for pics or specific reviews once you get a restaurant name.