Xubuntu is described as 'Elegant and easy-to-use operating system. Xubuntu comes with Xfce, which stable, light and configurable desktop environment. It is based on Ubuntu Debian Linux' and is a very popular Linux Distro in the os & utilities category. There are more than 100 alternatives to Xubuntu for a variety of platforms, including Linux, Self-Hosted, Mac, Windows and BSD apps. The best Xubuntu alternative is Linux Mint, which is both free and Open Source. Other great apps like Xubuntu are Ubuntu, Manjaro Linux, Zorin OS and elementary OS.
Manjaro Linux has got the point where it's more user friendly than Xubuntu, in my opinion. Particularly in the XFCE (official) and MATE (community) builds, the pamac/pacman package manager is utterly great to use and draws software not just from Manjaro repositories but from Arch's AUR, which has something like 60k+ software apps. Despite being based on Arch, Manjaro is very user-friendly and the community support is fantastic.