From RHLUG Wiki
htop is basically just a better version of
Most distros have
htop in their default repos, so if it's not listed here just try installing
htop with your package manager.
apt install htop
wget dl.fedoraproject.org/pub/epel/7/x86_64/Packages/e/epel-release-7-11.noarch.rpm rpm -ihv epel-release-7-11.noarch.rpm yum -y install htop