Ok, start here: * Nextcloud - https://nextcloud.com/providers/ https://nextcloud.com/providers/ * Diaspora - https://bitnami.com/stack/diaspora https://bitnam

Ok, start here: * Nextcloud - https://nextcloud.com/providers/ https://nextcloud.com/providers/ * Diaspora - https://bitnami.com/stack/diaspora https://bitnami.com/stack/diaspora (not that you need to host, see https://diasporafoundation.org/#get_started https://diasporafoundation.org/#get_started) * Mastodon - https://masto.host/ https://masto.host/ (again, like diaspora hosting isn't needed, see http://joinmastodon.org/ http://joinmastodon.org/) Of the above, only Nextcloud generally needs some sort of hosting (which is reasonable given what it does), but there are plenty of low overhead options. It's not expected that normal people host their own Diaspora or Mastodon instances, there are plenty of open instances for people to choose from.