Proxmox
Get started with Proxmox. Installation considerations, networking, disk encryption options, and migrating existing virtual machines.
Everything's presented in a useful order to follow if you're used to Hyper-V, VMware Workstation, or VirtualBox and want to jump in by moving to a Proxmox server.
What's most interesting about Proxmox is the Web UI gives you full console and GUI (yes, GUI desktop) access to your VM's through either noVNC or SPICE, even via a smart phone.