A lot of lifters are so obsessed with the level of bodyweight they lift that they wholly neglect the TuT. The vintage spinal erector exercises are deadlifts and entrance squats. You can do dumbbell Romanian deadlifts, Which will help. You can also do goblet squats. That should help, as well. https://hammerstrengthadjustabled91233.blogdosaga.com/33122699/little-known-facts-about-back-exercises-with-dumbbells