Best/lightest body armor & carrier

Suggestions based on personal experience? I found this article https://theprepared.com/self-defense/reviews/best-bulletproof-body-armor/ but some of the links are broken. For context, I’m a relatively small woman with a physical disability so I’d prefer to carry as little weight as possible while being as safe as possible (yeah I know there’s a tradeoff). And for more context, I’m planning to participate in street actions this fall/winter and am worried about shooters. So bonus points for helmet recs, too! Otherwise I’m going out there in my bike helmet. Thanks!