Prefer containers over VMs when possible, which is most of the time. You’d stretch your hardware much further than using VMs. I’m running 20 containers at the moment on an 1800X and I use the same machine as a gaming desktop. It’s vary rare I can tell that there are resource-hungry services running while I’m actively using it. I can be playing CS2 while several Plex streams are being serviced. Even with some transcoding.