This is my experience as an official, not legal advice. Speak with your own attorney about your situation.
Document digitally.
I began with a red paper folder. A dated digital record, with screenshots and links, is easier to hand to police, the city attorney and the District Attorney.
File a police report, even if you are told it is minor.
A report creates a record that supports later steps.
Talk to the police and the city attorney together.
Separate conversations leave gaps between criminal and civil options.
Tell people who can speak up.
Community members who came to council made a difference and made the pattern visible.
Describe the conduct and the impact.
Say plainly that you fear for your safety. Keep public posts about conduct and leave naming to the authorities, and ask an attorney before you post about anyone.
Protect your people.
Warn hosts and supporters, and decide with them what is safe.
Get support for yourself.
A therapist or peer group who understands this work matters more than most of us expect.