It’s easy to know who the top producers are. You actually don’t need much more than an instagram account and a few minutes. These producers are lauded by the court of master sommeliers, WSET, etc., and called “classic” or “traditional” in tasting groups.
It’s much harder to know the up-and-coming producers. It takes time, understanding and more intuition than study to find the new producers that have promise. And even further, takes going to a place and really spending time with all types of producers with different perspectives to see who will make a lasting impression.
The wine professionals to listen to are the ones that pay attention and know the landscape, not those who continually laud the same producers over and over again.
Amateurs recite the same script over and over again. Professionals keep searching.