My Pleasure!
I don't really follow the latest in 3D as a lot of the tool sets have been depreciated for consumers since the 3D market has pretty much died. Even in my latest tests for YouTube for example, 3D Upload is very much broken even when following their official guide. In the Bluray market, Cyberpower and NVidia have dropped consumer 3D Support so you would need to run older versions to get it to work, and 3D Displays are non-existent these days. I also used to dabble in doing some 3D post conversion media, and admittedly still run a LG Cinema Display 3DTV but beyond that, I don't do much in the 3D Realm outside of audio.
In your case, beyond getting a old polarized 3DTV where someone would need to watch the photos with glasses, I don't see much going forward unless you were to use a VR headset. There is old Nintendo 3DS Software they may work, but I've sparingly used it. But, yeah the 3D market these days are just Virtual Reality headsets, where it's an individualized experience, and in your case it should be easier since you can keep them in the same photo, but beyond that pretty much hard to do.
