I have a lot of ideas, but they wouldn't happen, for various reasons.
One key is to understand your side is the overwhelming majority. Most important immediately is not letting 23 pass.
It would immediately make you all criminals for one.
My comment above was to let you know what I think Beijing's strategy will be. They certainly will not send in troops and shoot.
Focus on HK supposed autonomy. Get rid of Beijing puppets in the legislature. Get the open vote asap. Don't rely on Beijing.