I've been pretty happy with https://getcockpit.com/ https://getcockpit.com/ for smaller sites. It's flexible and reasonably robust. Not perfect but if you know

I've been pretty happy with https://getcockpit.com/ https://getcockpit.com/ for smaller sites. It's flexible and reasonably robust. Not perfect but if you know some PHP and JS the code is fairly easy to follow if you do need to tweak stuff.