Rhomboids are a weak link for many lifters. Target them like this. Use a close grip attachment and pull down to the sternum. Flare the elbows out at a 90-degree angle.
Heavy bent-over dumbbell or barbell rows are still best for building an impressive back, but the rhomboid pulldown is a great finishing exercise for adding more volume without taxing you as much as the bigger movements.
Use a V-bar or close grip attachment and pull down to your sternum while flaring your elbows out at a 90-degree angle. Keep your trunk stable to prevent excessive rocking.
This article contains so many training concepts and ideas that it'll likely keep your workouts fresh and productive for months to come. This is one you'll want to print out and save.