Swimsuits can be a tricky thing for many people, but I'm here to say there is a swimsuit made for everyone.
1.If you have a small bust you want to get tops that have a little padding to give you a lift. Also wearing tops that have ruffles or added fullness can give the illusion that your bigger. On the plus side you are really the only ones that can wear the bandeau top.
Avoid ill-fitting tops.
2.If you have a full bust you want to get tops that have an under-wire or thick band for support. Halter Tops can be good for support and provide sexy cleavage. Avoid bandeau tops and tri-tops.

3.If your a curvy girl solid colored one-piece bathing suits with a plunging neckline, help to keep the attention on your upper half. Tankini styles help to conceal your midriff, and the added ruching sides camouflage a round tummy. Boy shorts are also great for those who want some added coverage around their bottoms.

4.If your a petite girl bright colors are your best friend.
5.If your body type is athletic build these bathing suits would be a great choice.

6.If your body type is pear-shaped these bathing suits are some great choices. If you’re shorter, and would like to give your lower half a more flattering look, try a fold-over style bottom with cinching side strings that adjust at the waist and leg. If your limbs are long, then the key to looking fab in your swimsuit is finding one that accentuates the hips like the monokini pictured below.

7. If your body type is hour-glass there is a lot of freedom on what swimsuits you can wear. Here are just a couple of options you might want to try.

I hope this swimsuit guide has helped you out. If your not sure what body type you are measure yourself. You can be skinny and have an hourglass and be thick and be athletic build. So it's about the comparison of your bodies measurement.