Reddit, I beg of you: My bra is holding on by thoughts and prayers! What brand do you swear by?!

Ok friends. Im 5'4" and 170lbs (hello peri-weight pfff) and Im a little plump up front. Always thought I was a 34 DDD. Both ladies are the same size, woot woot but I have struggled to find a good bra. I do not want a uni boob nor do I want to pout over the top of anything. I am constantly reaching in from the top to pull them up and out of the middle. Since stores like LA Senza or LaVieEn Rose are simple to get to, I have bought the odd bra there only to feel like they hold me for about the first month of use. I feel like I wear bras to simply round off my pointies but otherwise they just sit where they have naturally fallen too.

My feeds are full of ads for Shapermint, SheCurve etc etc. Please tell me where to order from. Small chest size, larger cup! Don't want a uni-boob, fall out the bottom, pout over the top, or extra rolls on my back. Please send your thoughts and prayers this way!