Proxmox or XCP-ng
Both are easy to set up and use. Both give you freedom to run a virtual infrastructure.

I run both, prefer Proxmox fwiw
https://www.proxmox.com/en/

if you do run proxmox check out this repository … jump start your rabbit hole into container
https://tteck.github.io/Proxmox/

I thought the same thing but it’s not bad actually, there are some pre build dashboards you can import for common metrics from Linux, windows, firewalls etc …

netdata is much better though (IMHO)

agreed … BY FAR the fastest. Easiest learning curve as well

easiest by far to set up, plenty of metrics

https://www.netdata.cloud/