A Line Bridesmaid Dresses
If you want the same dress on every bridesmaid, an a-line silhouette is likely your safest bet.
Although an a-line silhouette certainly isn't the most modern option in the world, it's a classic for a reason. Pretty much everyone looks awesome in it. The only body type that might struggle a bit with this dress are apple shapes, but that can usually be addressed with good tailoring or finding an a-line that has a slightly higher waist.