How to Choose the best Dress for Rectangle body shape
Avoid neckline that is wide and shallow which gives a horizontally broadening effect such as Boat neck, Sabrina neckline, Sweetheart neckline, a wide “V” neckline, wide Scoop neckline, Crew neck and so on.
Choose those necklines that are narrow and plunging like narrow deep V or U shape. Because it is narrow and deep, it will draw the eye inwards and downplay your shoulders. Halter neckline is another good choice as they tend to make the shoulders appear narrower.