That leads to the value of attending tastings when offered at retailers.
I was poured a Caravan, second label of Darioush, at a local tasting. Not under $25, but fits the smooth rich profile the OP is looking for. I'm not a fan of the style, but all tastings give reference points.
Better yet, join a group that does blind tastings. With the right group and intelligent selection, you can sort out preferences quickly, independent of price and name recognition.