The problem with that is many switches are different and there wouldn't be any way to cover more than a couple different kinds. Maybe once we have our own product with a built-in switch we could do it.
The pfSense part is simple, just add the tags. Interface configuration has been covered in previous hangouts like the one on creating a DMZ.
So if we were to do this now, it would mostly be theoretical and generic info and not really about pfSense. Which we could do, but it doesn't feel like a topic that's a good fit for a pfSense-specific hangout. Maybe if we run completely out of other hangout topics ;-)