I'm a 34DDD and bought six swimsuits - I had low hopes for

Aerie Lightly Lined Underwire Bikini Top

Deep V one piece swimsuit, Ark Swimwear

One piece DD cup swimsuit

Pool Days Top D+ - Big Boob Bikini Top – Left On Friday Canada

CUPSHE Women's Bikini Top Blue Halter Back Tie Bathing Suit, XS

Scoop Bikini Top D-DD

Sunnie Wireless Lightly Lined Blossom Lace Trim Bra

Sunday Top D+ - Big Boob Bikini Top – Left On Friday Canada

Women's Deep-v Unlined Lace Lingerie Bodysuit - Auden™ Black Xxl

Zip one piece swimsuit, Ark Swimwear

One piece DD cup swimsuit

Figleaves Frida Bandeau Swimsuit Longer