I used to just buy french standards for years, Cabernet, Pinot Noir, Merlot etc. But I've been branching out a bit, with some Italians (I love Chianti) and the Chilean Carmenere, which is really spicy and sharp-ish but not acidic.
I work for the PLCB (Pennsylvania Liquor Control Board) and had not heard of this variety, but upon a product search, we have a good handful of regular stock Carmeneres:
Concha y Toro
Any that you're at all familiar with?
I tend to stick locally (Niagara). Mrs.jingle and I will go on a tour every 12-18 months. There are 93 wineries in about a 50 mile radius just 90 minutes away from us. We've knocked off 23 of them so far.
There's a winery here near Lancaster, Nissley Winery, that makes an unbelievable Niagara. Yum.
A couple others that I routinely find myself going back to, are Snoqualmie Riesling from Washington and Fetzer Gewurztraminer from California.