A few i had in mind (from my bookmarks): Cloudron, Sandstorm, HomelabOS, libre.sh, UBOS, Unraid, Helm, CasaOS, servers.coop's Capsul. In my opinion, in those virtualized solutions Sandstorm is the only one that's not a simple GUI for docker/LXC and had some actually interesting research going on (especially in terms of security). That's for generic selfhosting solutions, and i personally have no strong opinion about these as i'm more interested about bare-metal solutions that work on low-end hardware (Freedombox/Yunohost/LibreServer).

To this list you can add the free ansible/docker recipes used by friendly hosting coops such as webarch.coop or disroot.org. I'm guessing many other CHATONS.org/Libreho.st federation members also publish their recipes, but i wouldn't know for sure.

I don't count ChromeOS as anything as my understanding is it's just a web browser with a custom kernel? I may be missing something as i've never used it, and if i don't have the source code and/or have to pay Google a single cent to use it i most probably will never try it out.