openSUSE has a decent package repo and Build Service (OBS), which is akin to Arch's AUR, but more stable.
The package manager YaST is also highly acclaimed.
Tumbleweed is the rolling release and Leap is the stable distro.
Half a dozen reasons why openSUSE is a great OS for your PC | CIO
Is openSUSE Tumbleweed good enough for a seasoned Arch user? | CIO
YaST
YaST Software Management - openSUSE
Portal:YaST - openSUSE
YaST - Wikiwand