I know it CAN be done from the OS level, I was looking to do it from within Audacity (preferably) or else for specific recommendations for tools. Google produces lots of paid placements whenever you look for software, and then other vendors know how to stack their own listings with tools like bogus review sites that sell every tool they review.
Meanwhile someone else recommended dbpoweramp, which allows for VBR encoding, Seems to be a bit spotty about filling in information thought, some files have it, others don't, even from the same source folder. And it doesn't like to have a track manually tagged "Track 0" which is how I tag an entire album-in-one.
That's the kind of advice forums and friends are better at, than google.