Swimsuit question for well-endowed women

Hello all- I read one thread on this topic, but still have questions before I spend a lot of time shopping for a suit. What suit do you backstrokers wear to keep from giving everyone a show? I see online options of shelf, soft cup and underwires (??!!) in suits. What style is best? As far as brands go, it looks like TYR is popular with women. Any advice is greatly appreciated!