Planning my visit to Douro Valley Portugal next month and looking for wineries. Especially small high quality producers not the big guys with big money. We’ve spent a lot of time in Napa so my comparison of what we are after are places like Aonair, Smith Madrone, Rivers Marie, AXR (5 yrs ago before it became an it place), Viadar, Outpost- not referencing for a wine comparison but for size/quality/experience.