One-arm rows for a thick, balanced back.
Keep your back flat and pull to your hip, don't twist your torso to lift.
The dumbbell row works one side of your back at a time, with your other hand and knee braced on the bench so the working lats and mid back get full attention. Pulling the weight to your hip drags the elbow through a long arc that the lats love, with the biceps assisting the pull. Because each side works alone, it's the row that finds and fixes the strength gap your barbell work has been hiding.
Your hip, as the steps say, that path keeps the elbow tight and the lats loaded. Pulling wide and high toward the chest shifts it to the upper back and rear delts, a different exercise.
A touch of controlled drive on the last rep or two, fine. Twisting your whole torso to heave the weight up, no, that's momentum doing the reps your back should be doing.
Start with your weaker side, then match those reps with the stronger one. That way the lagging side sets the pace and the gap closes instead of growing.
