http://www.theleaguesf.org/voter_guides
I voted today up in San Francisco, and I could only find one good resource that covered statewide judicial endorsements. Here's how they made their selections:
"If weve learned anything this past year, its that there is a conservative judicial agenda with lasting horrendous impacts. In California, there are two websites run by conservatives, Robyn Nordell's Conservative California Election Website and the Judge Voter Guide, produced by Craig Huey. They absolutely hate the judicial activism that comes from liberal judges. Go there, find out which judges they support, and then vote the opposite. By that method, here are our unofficial suggestions with help from the Vox article, "Dont Just Say Yes: How to Vote in Californias Judicial Races."
When I was looking around for judicial endorsements, I came upon the Judge Voter Guide, produced by Craig Huey. it sounded like a reasonable resource, but I wasn't sure what direction Craig Huey was coming from. I'm glad I found this resource instead.
San Francisco League of Pissed Off Voters - scroll down -
http://www.theleaguesf.org/voter_guides
You'll also find endorsements of other statewide candidates and ballot measures.
I'm also posting this separately in the California Group.