Execute a pushup after which conduct a vintage renegade row with each in the dumbbells back one after the other. The traditional spinal erector exercises are deadlifts and front squats. You can do dumbbell Romanian deadlifts, and that should help. You may also do goblet squats. That can help, too. https://elliottoazvg.pointblog.net/not-known-facts-about-back-exercises-with-dumbbells-76559763