Proxmox VE - Proxmox is an open-source server virtualization management solution that offers the ability to manage virtual server technology with the Linux OpenVZ and KVM technology.
Veeam Backup - Backup and restore VMware and Hyper-V virtual machines with Veeam Backup Free Edition. Unlimited hosts and VMs. Free forever.
Hyper-V - Install Hyper-V on Windows 10
Zerto - Virtual replication & recovery solution
Azure Virtual Machines - Build Linux and Windows virtual machines (VMs) and save up to 80 percent with Azure Reserved Virtual Machine Instances and Azure Hybrid Benefit for Windows Server.
Acronis Backup and Recovery - Acronis Backup is a data recovery solution that offers more ways of storing and recovering drives, folders and files as compared to other similar solutions.