Generally speaking, if you want to increase the shoulder width, you should focus on two parts for training. One is deltoid muscle, which can choose the standing posture (or sitting posture) of barbell (or dumbbell), as well as the side lift and front lift of dumbbell. Second, latissimus dorsi, the simplest and most effective way is pull-ups, and it is best to choose a wider grip distance (about 1.5 times shoulder width).

As for the shoulder is a little inclined, excluding natural reasons, it may be caused by your poor sitting posture or your work (always carrying a load on one shoulder). Because of bad habits, the muscles on both sides may develop unevenly, leading to shoulder tilt. Therefore, in strength training, you should first standardize your movements, and then through long-term training, slowly balance your muscle strength on both sides, which will improve your current situation. Also, we should pay attention to getting rid of bad habits at ordinary times.