Move vm between 2 separate clusters

Currently I have 2 separate proxmox clusters and I would like to transfer the kvm vm's from one to another. Is there anyway to do this nicely?

I've moved one manually and renamed the drive and it did work but the other vm's are 200gb and had some issues that I don't want to hose the setups. Trying to shrink the drive also hasn't really worked out either.