The alternating batwing row is great for General back strength. It targets numerous back muscles simultaneously. I like to recommend applying an incline bench, alternating rows with dumbbells in Every hand. The classic spinal erector exercises are deadlifts and front squats. You can do dumbbell Romanian deadlifts, Which will help. https://finnsgoyh.blogofchange.com/33898022/hammer-strength-adjustable-dumbbells-things-to-know-before-you-buy