Once you have VMware Player installed and patched appropriately, you will find MacOS suddenly appears as a valid client OS option.

Update: Apparently, Parallels is planning to provide Mac OS X virtualization on Macs, so that users can run additional versions of Mac OS X in a window.

Follow these steps to create a virtual machine for macOS to be hosted by VMware ESXi running on a bare-metal server.

VMware has also prepared Fusion 12 for the upcoming launch of macOS Big Sur, which will continue Apple's transition toward ending support for kernel extensions.

Apple's latest version of macOS, Catalina, officially ditches 32-bit app support, but you can still run the software you need by following these steps.