OpenSUSE and Manjaro are both powerhouse distributions. If you're new to Linux, only one of these may be right for you. These distributions are free to download and install. A long, long time ago, I ...
Arch Linux is not for the faint of heart. The reason for this is the installation, which is no walk in the park (unless said park is a convoluted mess of climbs, pitfalls, rope ladders, and monsters).