Where do we shop for swimsuits?

I hate everything that I see by google search..As I have a very particular vision for my swimsuit. For years I’ve been wearing a one-piece due to some body image issues, but now that I’ve lost weight I really wanna show off i a two piece. I’m a young woman, and have not worn a two piece since like 14 years old. It is still very hard for me to accept or like my breast, that’s why…

-I don’t want any visibility of my girls at all. I want it all covered completely. Hence the look I’m probably going for is a tight sport-bra like

-Possibly an ability to pick a different size for top and bottom?

-A modern design, maybe something very simple like one color, no grandma style

-I really like a high waist

Please, let me know if you know of any brands that might work for me! Summer is approaching and I wanna feel sexy and get my bikini pic for once