Why select any specific one?
If you create native boot virtual hard drives (not virtual machines), you could install each Insider version in its own virtual drive (vhdx) file each with its own boot entry.
That way you can select which Insider to boot from.
I would consider install release version on pc, then clone OS to a vhdx file say dev.vhdx. Then copy that to say Beta.vhdx etc so you end up with 1 vhdx file per Insider version.
Then add a boot entry to boot from vhdx file (see tutorial section).
The boot into each vhdx section in turn and join appropriate Insider version.
Even if you decide to join only one Insider, I would still have stable release as Host OS, and Dev version in a vhdx file. That way if dev version falls over big time with an update, you can simply delete vhdx file and boot entry, and repeat procedure about to recreate dev vhdx again.