I can't find a bikini that I actually look good in, Its not that I need to loose weight..?

I just don't look good in any bathing suits. I am pretty thin to begin with so working out really isn't going to be that helpful for this problem. I have a kind of wide rib cage and broader shoulders so bikinis just aren't very flattering. I am petit so with normal clothes on you would think I would look good in a bikini but it just doesn't end up like that. I don't have the nice narrow middle area many women have because of my rib cage..idk Any advice on a good bathing suit style to try? Sorry if this description was too confusing, I don't really know how else to word it.