Solus is an interesting recent distro in that it's written entirely from scratch, not built on top of Debian/Ubuntu/Arch, etc. It also made its own DE, Budgie, which has since been ported to Ubuntu. It's also become the go-to distro for Linux Steam enthusiasts, because the developers put a huge amount of work into making their own package of Steam that seems to work better than many of the existing ones.

You can check out a DistroWatch review of it here: https://distrowatch.com/weekly.php?issue=20170206#solus

Also, you may wish to listen to an episode or two of Late Night Linux, on which Ikey is one of the hosts. It's not solely about Solus, but it does get quite a bit of screentime by virtue of his connection to it: https://latenightlinux.com/about/