Face pulls. I love face pulls. Do em every other day for a week or two, then just work them in. They do wonders for your rotators. They hit your lateral and posterior delts in a very different way than any other exercise. Try doing them with different grip angles. You can pull back with the tricep rope and end the movement with the backs of your hands facing your ears with your elbows pointing back. You can vary it all the way out to where your palms are facing forwards, and you're sort of stretching the ends of the rope away from one another, trying to end the movement with your arms up like goalposts. Most times you'll hear people say not to go heavy, but I've tried them all ways, and heavy on face pulls is fun as hell. You get to the point where you need to start the movement with your whole body leaning back at about forty-five degrees. It takes some concentration to not use your bodyweight to assist the movement, but that's not too hard to figure out.