The ONLY bra styles that fit me well (and I've tried at least 30 recently) are a few low balconies (Curvy Kate Tease Me and Masquerade Rhea and Hestia). Perhaps I am between cup sizes, but I have slight quadboob in the E and with the F, a tiny bit of space at the top and slight ridge visible through clothes. Which increases with duration since last scooping. At this rate I may as well just wear crop tops most of the time because they look better through day clothes.
The Freya Deco Softcup at least looks okay from the front and under clothes but there is a bit of space at the top and, not being the right shape it's not very supportive. Not much point paying for that.
I've a couple of others left to try in different sizes that seemed promising when slightly too small: Freya Patsy and Cleo Maddie, but wouldn't be surprised if due to the shape they also leave this ridge.
Maybe I should try some other old Masquerade styles before they sell out?
When there has been an extra lace / sheer panel at the top of a bra, I've never quite filled it, but this problem is significantly worse now than it used to be. It's been very evident in the Bravissimo Alana and the Curvy Kate Princess among others.