Chest Sizing for jirai brands

Hi, I’m a baby jirai who’s looking for their first blouses, and I’m struggling with finding some that will fit around my chest. I’m a 32G US/32F UK/70H EU. Will any proper brands actually fit me, or will I have to buy dupes?
Sorry if this is a silly question, but I’ve already bought an ill fitting blouse and don’t want to waste any more money
Thank you