I've got a couple VPSes, hosting
- Mailcow, because email is identity.
- Asterisk, because phone #s are also identity.
- Matrix-Synapse, for personal messaging even though XMPP is probably better.
- ttrss, even though it's junk software with a jerk developer.
- A bunch of self-developed web apps
Self hosting email is obnoxious, but it's also one of the only remnants of the traditional distributed internet that's still broadly accepted.