The alternating batwing row is perfect for Over-all back strength. It targets many back muscles simultaneously. I recommend making use of an incline bench, alternating rows with dumbbells in Every hand. The basic spinal erector exercises are deadlifts and entrance squats. You can do dumbbell Romanian deadlifts, Which will help. https://hammer-strength-dumbbells57888.activoblog.com/35623395/hammer-strength-dumbbells-an-overview