I see. So you’re hoping to build a public resource that lists information about local repair options.
Our repair wiki is great for general information about repair.
But I guess making your own wiki of some kind would work better for that local information. We use MediaWiki software to do this (the same software that Wikipedia uses). It’s free and open source, but it does require learning how to use the software. And you’d either need to set it up on your own server, or find someone to host it for you. For the second option, Miraheze might be able to host a wiki for you for free.
There are simpler alternatives like Notion, which offers a limited free plan or Gitbook which is free for registered non-profit organisations.
Would any of those work do you think?