What about developing a comparison chart that’s made by Privacy Tools? The one I made is super basic, but the two linked on the site are, imo, too confusing for the average user. The secure chat guide one is the best because it’s searchable. The Secure Messenger site, besides being run by a terrible person, is also too confusing and not sortable.
It could be nice to have an always up to date guide on PrivacyTools, and it could even have an often missing section “is this open source?”