My advice would be this: depending on your licensing, install a new VM and install Backup and Replication software on it. Add the Hyper-V box and start protecting your VM's to a repository which could be a VHDX attached to that B&R VM. The problem however with this setup is that both your production data and backups will be at the same box. So you need to get a copy offsite. There are different ways. Tape is still not dead
, you can work with rotating drives or do a backup copy job to another location (but from what I see, you don't have that at this moment). So indeed your best bet would be sending it to one of the Veeam cloud providers. Veeam itself does not have a cloud, we work indeed through our partner network.