Session is the best yet for simple click install, takes all the best from signal in terms of usability/ease of use but not centralized https://get session.org if you haven’t tried it:)
+1 for session, it looks amazing for privacy and anonymity thanks to bouncing the message multiple times and stripping metadata. clean and modern interface as well.
There are many sites with alternatives out there, one of my favourites was called switching.social but seems to have changed to https://ethical.net/resources/
Is there any way that one day Lemmy could work with Yunohost? It would likely be the fastest way to get more servers up and running for non-technical users. It makes setting up services almost a point and click affair once the initial Yunohost server is installed.
openbazaar shut down?:( never used it but had high hopes for it