Brucehankins I really don't think there's anything as good as Solus.
Solus brings together a unique combination of a solid, efficient and stable OS layer, high-quality DE layers (my experience is limited to Budgie and Plasma) implemented flawlessly, carefully selected applications targeted at home desktop user, Flatpack, appimage and Snap support, and an intelligently implemented rolling release model. In short, a solid, kruft free, user-friendly, desktop-focused, quality designed/implemented top-to-bottom. Although there are other high-quality distros available, none bring all of those factors together as well as Solus.
I've looked at quite a number of Budgie and Plasma implementations during the last year precisely because "the possibility that is just disappears one day is not zero". None of them are as good as Solus. The only two I'd consider at this point as Solus replacements or distros that I would recommend to friends wanting to come over from Windows are Ubuntu Budgie and Kubuntu.