I've thought about running a VM on my Mac, but I'd only need it for SNS-HDR. Not really worth the effort of setting up a virtual Windows box. I have a Windows machine running in my home office, so I just upload my images to One Drive from my Mac and then RDP into the Windows box to run them through SNS-HDR. Then I grab the resulting HDR image from One Drive back on my Mac to process further in PS. That works well with almost no delays in file handoff between the systems.
I tried getting SNS-HDR to run in Wine, but that was a no-go. Others have tried that and failed, too.