Jackets with shoulder padding and a narrow athletic cut will emphasize your shoulders and make the top half of your body appear more weighted, giving you more balanced proportions.
Look for close-fitting clothes that reduce visual clutter and emphasize the clean, sharp lines of your torso. Choose slim-fit jackets that follow the natural line of your silhouette and are tapered at the waist.
Use layering to add shape to the upper half of your body. Opt for wide collar shirts and wide lapels to create the illusion of broader shoulders, and roll-neck sweaters to make your chest look wider.
Trousers and shirts or sweaters which are the same color will create a slimming effect. Avoid contrasting colors, which will draw attention to your larger stomach area. Opt for navy or charcoal colors.
A blazer or suit jacket tapers your waist, making your stomach seem slimmer and your shoulders seem broader. Wear it buttoned with a single button at the waist for maximum effect.
For the full breakdown, check out the article linked below