There are a few places where I buy certain things because of price/availability/quality. I have specified those below. In general Trader Joe's is the best place for nuts and specialty things like crème fraîche or coconut sugar. Costco is where I now stock up on my favorite olive oil, maple syrup, vanilla bean paste and even Maldon salt.
(The list below does NOT contain affiliate links. These are just things I love and like to use.)
TRADER JOE'S
Organic Cauliflower
Baby Yellow Potatoes
Organic Lemons
Avocados
Nuts
Quinoa
Kerrygold Butter
Crème Fraîche
Whole Milk Ricotta
Uncured Apple Smoked Bacon
Coconut Sugar
Wildflower Honey
PCC MARKET
Rotisserie Chicken
Field Day Canned Beans
Bob's Red Mill GF Flours
Aroy-D Coconut Milk
WHOLE FOODS