Similar Books by ... custom columns

By default, the regular book list context menu has a Similar Books option - that offers Books by same author, Books in this series, Books by this publisher, Books with the same tags

Is there something that offers Similar Books with custom columns - e.g. I would like to see Books with same Location, Books with same Main Character -- Location and Main Character being a couple of my custom columns.

Bit surprised KD didn't do a PI for it - maybe he did but I can't spot it.

TIA BR