You can run macOS in a docker container. There’s no hardware acceleration for gpu, but works well enough.

You can also try macinabox if you have unraid:

https://hub.docker.com/r/spaceinvaderone/macinabox

It’s probably the easiest way of setting up a Mac VM if you have unraid. I know there are similar options for qemu and kvm based hypervisors. If you have an amd gpu you should be able to pass it through.