Remove salmon from the refrigerator and let come to room temperature, about 30 minutes. Dry all sides with paper towels. If using a grill (not a grill pan), preheat your grill to medium (if your grill isn’t clean, make sure to clean it first or the salmon could stick).
Immediately before grilling, season all sides generously with Kosher salt, including the skin. Using 1 tablespoon of Chili-Cumin rub per piece, rub it over all sides of the salmon (except for the skin).
If using a grill – Lightly oil the grate of the grill, then place the salmon, skin sides down onto the grill and cook until skin is charred and crispy, 3-4 minutes. Flip and cook for an additional 2-3 minutes until salmon is lightly browned and medium-rare. You can cook a bit longer if you prefer, but the salmon continues to cook slightly after it’s removed from the grill, so be careful not to overcook it.
If using a grill pan – Heat grill pan over medium heat. Once hot, spray with avocado oil (or oil of choice) and add salmon, skin sides down. Cook 3-4 minutes, until skin is charred and crispy. Flip, lower heat to low and cook for 6-9 minutes, until salmon is lightly browned and cooked to your desired temperature.
Divide Avocado and Corn Salad between plates and place the salmon on top. Drizzle with as much of the lime crema as you’d like and serve.