I did some googling and found nothing.
The Italin and Spanish take oil seriously, maybe you can try Italian or Spanish search terms.
Or, instead of googling or reading, why not try tasting yourself? There is much to be said for trying things yourself. I suggest that you buy a bottle of a cheap or middling brand and a bottle of something extraordinary and taste it yourself.
If you're unsure of how to find something extraordinary, try anything sold in half-liter bottles labelled Demeter, or any half-liter bottle that's more expensive than Demeter-labelled olive oil. (Demeter is an association of organic farmers that one might describe as a little kooky... and Demeter farmers' products are generally very good to excellent.)