I match spices to what foods I eat:
Coriander with almost anything that was a root - carrots, rutabagas, or turnips (also fleeping awesome with sweet taters, if'n you eat them).
Dry Rosemary in any roast ruminant.
Very light amounts of Cumin in most ground beef dishes, I find is complementary.
I found a Kosher Sea Salt that I love as well.
Turmeric goes with my pig 'n chik dishes - although I don't eat pig or chicken much.
Curry Powder with lamb is a mainstay.
I make BBQ rubs with the following:
Chicken and Pork: Turmeric, "Sweet" Chili Powder, Smoked Paprika, White Pepper, Chinese 5-Spice
Beef: Smoked Paprika, White Pepper, Cayenne Pepper, Garlic and Onion powder, Black Pepper
And (I know it's not paleo) I LOVE SRIRACHA! On practically anything, but particularly on fried eggs.