Crux is a great distro for anyone ok with a source distro and I think it might be the best source distro, unlike the more common source distros, it does not do most of the work for you. Also love its influence from BSD, which came in very handy when I started to explore the BSDs and FreeBSD which is my fallback for when Patrick dies or steps back, Crux deserves more attention.
The best successor I've found is Alpine. It's minimal and secure by design, has an excellent package manager (I much prefer apk to pacman or xbps, or apt and rpm for that matter), has stable and LTS releases while letting people who want to be rolling release do so by running edge. People think it's only for containers but it has every desktop package anyone would need, all up to date and well maintained. Their wiki isn't at Arch's level, but it's pretty damn good in its own right.