The Rufus image utility https://rufus.ie/en/ supports creating Windows To Go bootable drives on an external drive.
If you have an external USB drive and an ISO image, you can have it flashed and be bootable. You would simply use your UEFI bios boot menu to select the drive to boot from.
The advantage of this method is that it doesn't involve touching your main drive at all which makes testing different versions and builds easier.
N.B. Do not uncheck the default checked option "prevent windows to go from accessing internal disks". Windows has a nasty habit of going after other drives it sees. With this option checked, when you boot from the usb drive, it won't be able to see your main drive, and that's fine.