Bob, I will definitely take a look.
Just an update on Topaz Remask (now updated to Topaz Mask AI): The full version of the app is available on a 30-day trial. Without a basis for comparison, I was quite impressed with the software's ability to automatically select the subject. Although it may not be perfect, the tools to tweak the selection are intuitive & simple to use. Of course using the software for the first time requires a bit of practice.
Once downloaded, Topaz Mask AI is usable either as a standalone app or as a PS plugin. However, I did run into a major glitch with the standalone. After I was finished with Mask AI & saved the image as a TIFF, I could not open the file in Lightroom, PS or Preview (for Mac users). According to the folks at Topaz, this was a seldom-heard issue that they are researching for me. However, using it as a plugin in PS seems to work fine.
So, based on a couple of responses on this thread, I will explore PS a bit more for comparison to Topaz Mask AI.