KDE is one of the most customizable and fastest desktop environments out there. While you can always install KDE if you know-how it is best to choose a Linux distribution that comes with KDE out-of-the-box.
Here let me list some of the best KDE-based Linux distros.
No matter what you choose as your preferred distro you can refer to our KDE customization guide to tweak your experience.
Note The list is in no particular order of ranking.
KDE Neon is one of the exciting choices if you want to get your hands on the latest KDE Plasma experience.
Even if it utilizes a stable Ubuntu LTS base you always get the newest KDE version delivered as soon as it is released.
Unlike any other distros it does not focus on a complete desktop user experience but the KDE software packages. So it may not be the perfect desktop replacement for everyone. However if you focus on using the latest KDE software KDE Neon is a decent choice.