Annoying bathing suit problem!?

I'm a 34 D, but you would never guess that I am. It's weird. I think im a D cup cuz my boobs are extremely close together. Like there's literally no gap so I need a bigger cup to get more coverage. Ughh I hate it. So every bikini top I try on doesn't cover anything. It just squishes my boobs together and its just veryyyy unattractive. And even if I get a large, there will be enough coverage but the band will be way to big and there is like no support whatsoever. Is there a bathing suit I can get that will support and separate? Every website for big boobs that I look at has only ugly designs at insanely expensive prices. Thanks so much for the help.