Just noticed this thread -- I will be spending some time in it for sure.
A lot of my catalog of CDs that I bought prior to the appearance of high quality streaming services were orchestral recordings on a handful of labels with a reputation for exceptional recording quality -- TELARC and Reference Recordings to name a couple. There's no shortfall in recordings from these labels with unusual bass extension, usually thanks to organ pedal bass lines, orchestral bass drums, contrabassoon, etc.
This one is from the TELARC catalog - Star Tracks II, a collection of sci-fi movie sound tracks. This track is from Back to the Future. If your sub is up to it you will *feel*, maybe hear an underpinning organ pedal through certain parts:
rumble