Look at the season. In fact, if the shoulders are wide, the chest should be wider and the back should be thicker to get dressed. To put it bluntly, you need chest muscles and back muscles, because even if your shoulders are wide, if you are thin, you will still feel that your clothes are hanging on your body.

If you don't have the conditions to go to the gym for the time being or don't have enough time (because it takes three months to see the effect of fitness), then you can choose some clothes that are slim but not too tight, which will make you more energetic and capable. It is best not to choose dark colors, which will only make people feel very old-fashioned

The principle is the above two, you can choose what color.