Here are some tips:
Hourglass silhouette – You have a defined waist and your hips and shoulders are similarly sized.
Gown types: A-line, sheath, or ball gown
Detail option: Scalloped, or sweet heart shape neckline. Side drape. Embellished bodice. Empire waistline.
Pear or triangle silhouette – You have a small torso and wide hips.
Gown types: Ball, sheath, or trumpet gown.
Detail option: Sweetheart neckline. Natural or drop-waist. Asymmetrical draping. Pickup skirt with ruffles or rouche. Embellished corset bodice.
Apple silhouette – Your shoulders are wider than your hips.
Gown types: A-line or ball gown.
Detail option: Voluminous skirt. Rouche or pleated bodice. Halter or sweetheart neckline.Empire and natural waist. Side draping along skirt.
Balanced silhouette – Your hips waist and shoulders are similar in shape.
Gown types: A-line or sheath gown.
Detail option : Sweetheart or straight neckline. Defined empire or natural waist. Full skirt.
Another thing to remember is that Spanx is your best friend on your wedding day if needed.