Most of the fediverse is supported via yunohost so in theory you can just give out: https://doc.yunohost.org/en/admin/get_started/install_on/

Any of these at all. I have a couple of services on it and its as easy as click install.

I think the easiest way to get people on the platform is to just have them sign up on a server (like lemmy/piefed/kbin/etc..etc…) and just let them have at it.