Rioja Alavesa - was there in 2021 - the town of Laguardia, etc. Lovely place. The provincial borders of the Basque country are bizarre. There are several enclaves of one province inside another, and in that region of mountains and valleys several regions (Alava, Navarra, La Rioja and Burgos) and provinces abut each other, and you can drive in and out of a region along the same road.
Another plus, maybe, is that the whole place is relatively unspoiled by tourism, other than by locals, from say Bilbao or Pamplona.
Sounds fun!