For an even smokier flavor, consider brining the salmon for 30 minutes before threading onto the skewers. A simple brine of water, salt, sugar, and your favorite herbs will work wonders. If you don't have hickory wood chips, alder or applewood chips are excellent substitutes, providing a slightly sweeter, milder smoky flavor. Be careful not to overcook the salmon, as it can become dry. The internal temperature should reach 145°F (63°C). Serve these skewers with a side of grilled vegetables or a refreshing quinoa salad for a complete and satisfying meal.