Sticky Soy Steak Skewers

Name: Sticky Soy Steak Skewers
Ingredients: 1 tbsp. chili-garlic sauce; 1 tbsp. hoisin sauce; 1 tbsp. toasted sesame oil; 2 tbsp. plus 1/4 cup reduced-sodium soy sauce; 1 1/2 lb. sirloin, NY strip, or ribeye, cut into 1 cubes; 1 1/2 tsp. baking soda; 2 tsp. (or more) kosher salt, divided; 1 scallion, green and white parts separated, thinly sliced; 1 (1) piece ginger, peeled, grated; 2 garlic cloves, grated; 6 tbsp. honey; 2 tbsp. rice wine vinegar; 1 large red onion, cut into 3/4 pieces; 1 tbsp. neutral oil, plus more for grill; Cooked white rice and toasted sesame seeds, for serving