Fast and furious way to try out KVM with a nice GUI
https://www.proxmox.com/en/proxmox-ve
(It’s on Debian) , just boot the iso . . .
add clustered servers and nbd storage with a click of a button (almost 
)
For all modern virtualizations make sure you have vt-x and vt-d (or equivalent) on your hardware and that they are enabled.