I hate bra shopping, loathe it completely and utterly. The best bra I bought, was back in the early 2010s. I'd gone to to the CBD for a short course, and in my rush I forgot to put a bra on (idk how I swear). I ran to target and the only one in my size (10DD) was this bright red one. And I had it for years, it was perf. Underwrite broke though. Since losing weight, I have no idea what my size is anymore, I use the bond sport bras, that are just elastic fabric.
I don't envy you, it's one of the shittiest things people with boobs have to do; find a fucking bra that will fit and won't fall apart after a fkn week.