If you have a little pooch, the best way to hide it is with a tankini or a dark two-color one piece bathing suit. The tankini top is loose flowing and hides everything, while black or dark colored bathing suits conceal all.
If you're busty, a monokini or a bathing suit with a deep v-neck is good for your figure because it doesn't show that much cleavage and elongates your body.
For the ladies with big booties, boy shorts bathing suit bottoms help hold it all together but still show off your curves.
Bandeau and ruffled bikini tops are popular and fit nicely on small or petite figures.
All bathing suits are under $35 from TARGET