Bulletin boards! They are such a great thing.
When I started doing promotion of public events sponsored by a small nonprofit in rural Virginia (USA), I was handed several pieces of paper with notes like post office, banks, dry cleaners, lumber yard. Over time, I've built a spreadsheet of places to share event and other community information. There's churches, HOAs, social media groups, IRL locations, media outlets, and so on. I am constantly referring people to the list to use (share information and seek information0 and edit. I knew very few people would make edits but I expected a couple of folks to use it for outreach.
About a month ago, I started thinking that my small neck of the woods could use something other than FB to share info. I'd love for electronic discussion groups to fill the void. Of course there are downsides, starting with slow adoption. But I feel like it's a lift anyone can manage given that it's based in email.
Of course, what will be shared is stupid stuff and not what I want (public opinion on state and local policies) and particularly information relevant to people with low incomes.