For every statewide election, The Courage Campaign puts out a "progressive voter" guide to the ballot initiatives based on a poll of its membership. They will email it to you if you provide your name, ZIP code and, of course, an email address here: https://couragevoterguide.org

The Courage Campaign is something of a California-specific MoveOn. I've been on their email list for years and they do good work. The quantity of messages is moderate.

Here's a quick-reference summary they sent a few weeks ago.

Proposition 51 - $9 billion bond to fix and upgrade CA school facilities

  • Courage’s position: Neutral
Proposition 52 - Make Hospital Fee Permanent to Pay for Healthcare Services

  • Courage’s position: Neutral
Proposition 53 - Stop Right-Wing Millionaire from Blocking Infrastructure Projects

  • Courage’s position: Oppose
Proposition 54 - 72-Hour Publication of Bills Prior to Vote

  • Courage’s position: Neutral
Proposition 55 - Extend the Tax on the Wealthy to Fund Education and Healthcare

  • Courage’s position: Support
Proposition 56 - $2 Tobacco Tax to fund healthcare, research, and prevention

  • Courage’s position: Support
Proposition 57 - Reform CA’s broken parole and juvenile trial system

  • Courage’s position: Support
Proposition 58 - Repeal the ban on bilingual education

  • Courage’s position: Support
Proposition 59 - Overturn Citizens United Act

  • Courage’s position: Support
Proposition 60 - Mandatory condom use in adult films

  • Courage’s position: Neutral
Proposition 61 - Requires CA to Pay Less for Pharmaceutical Drugs

  • Courage’s position: Support
Proposition 62 - Repeal the Death Penalty

  • Courage’s position: Support
Proposition 63 - Safety for All Initiative to Reduce Gun Violence

  • Courage’s position: Support
Proposition 64 - Legalizes Marijuana for Recreational Use

  • Courage’s position: Support
Proposition 65 - Fake Environmental Fee to Support Plastic Bags

  • Courage’s position: Oppose
Proposition 66 - Speed up the Death Penalty

  • Courage’s position: Oppose
Proposition 67 - Referendum to Uphold Ban on Single-Use Plastic Bags

  • Courage’s position: Support