There are super steep climbs and super long climbs. The hardest paved hill in San Francisco is the 38% grade of Broderick sidewalk. It's narrow. You can barely tack. It's also long enough to make you worry about being able to unclip in time in case of failure. All these streets listed that are steep, you can tack your way up as there is room to do so.

When I had my Pedal Force carbon bike in pure weight weenie mode at 15.5 lbs I got up Broderick in a 34x26. It was 600 watts at 4mph at one point on my power meter. These days I usually use a low of 30x25 or 30x27. It still feels like the chain is going to snap at any second but just slightly less so.

A video of a young cyclist climbing it.
https://www.youtube.com/watch?v=Vepam0d-zH0

Me at the top of it last year after a jogger was nice enough to take a pic.