We have tried quite a few $10 a bottle red wines in the past (from California , Spain, Chile, Argentina, Italy and France) which got high marks (meaning 90 or near it) by wine experts. Every time we were disappointed (which may be at least partly due to what we look for in a red wine). My sweet spot for red wine or house red wine is between $20-30 a bottle, mostly from California and also Spain and Australia. Our current favorites in this category are “Pessimist” (Petit Sirah, Zinfandel and Syrah based blend) and “ Cabernet Sauvignon” (both from from DAOU vineyards in Paso Robles), “Black Stallion Cab” (from Napa) and “Juggernaut Hillside Cabernet Sauvignon” (From Clarksburg, CA).
*We were not sure why this wine is called “Pessimist” initially then we found the following statement on the back label: “a pessimist is never disappointed”, which has some philosophical resonance.
But, recently, we came across these two $10 red wines through Vivino which are quite good and very drinkable.
In the picture below, the left and center are "Athena Cabernet sauvignon 2019 and 2020" and the right is “Leyth California red” (blend of Petite Syrah and Merlot similar to Pessimist). Both are $10 a bottle and if you buy more than 6 bottles, the shipping is included. I am not sure of current availability, though.