Part of the issue, admittedly, is that there's a bunch. Many have outdated info as well.

NAACP guide seems written for a more peaceful era, but is a good place to start.

Rescue our Democracy similarly has some oversights when it comes to tech safety, but at least mentions wearing a mask.

I'm not finding the better guides right now.

The big things as far as reducing identification that I'm not seeing is that beyond face coverings and the like to prevent facial recognition, don't bring your real phone and if you do keep it powered off in a faraday bag.

Phones are still traceable when in airplane mode, and while powered off, through bluetooth low power mode. This is what many countries used for covid exposure tracking. The only defense agaist this tracking is having your phone in a faraday bag that it doesn't leave until you are out of the protest area, or simply not bringing it.

There are a few ways to get burner phones not tied to your identity. If you wanted to go that route, you'd want to do the opposite. Keep the burner in the faraday bag at home and only use it out at protest locations, alongside the advice from those two guides as far as disabling biometrics, etc.

I'll try and find some better guides later today.