Manjaro - Manjaro Linux is a linux distribution which is based on arch linux. It uses the PACMAN package manager.
Ubuntu - Ubuntu is a Debian Linux-based open source operating system for desktop computers.
Kubuntu - Linux operating system distribution derived from Ubuntu but with KDE environment.
Fedora - Fedora creates an innovative, free, and open source platform for hardware, clouds, and containers that enables software developers and community members to build tailored solutions for their users.
ArcoLinux - Great Arch/Linux learning for beginers up. Want to learn Linux ground work? Want to learn how to customize your destop & experience? What to learn how to build your own functional iso? ArcoLinux is the answer. Period.
RebornOS - Reborn OS is a Linux distro based on Arch, coming with an easy to use installer that provides a very high configurability during the installation process.