36A and 34B — they're both technically a B cup. They're called

SYROKAN Women's Full Support High Impact Racerback Lightly Lined Underwire Sports Bra Brick 32B : : Clothing, Shoes & Accessories

What is my bra size?

R[Measurement Check] From 38c x 2 kids = 34B or 36A ? : r/ABraThatFits

80% of Women Are Wearing the Wrong Bra—Here's How to Find Your Correct Size

True & Co Women's True Body Lift Scoop Adjustable Strap Bra, Black, XS (30DD-DDD,32DD) : : Clothing, Shoes & Accessories

Bra Sister Sizes To The Rescue - Sisterhood Of Bras

Bra size - Wikipedia

What is my bra size?

Beginners Guide to Making Your Own Bras — LilypaDesigns

on a post saying the average bra size in the us is 34DD. wait till he finds out that 34dd is not a very big size : r/badwomensanatomy

Is a 34C bra equivalent to a 36B bra or a 34D bra equivalent to a 36C bra for Victoria's Secret? - Quora

34B Bras: Equivalents Bra Cup Sizes, Boobs and Breast Size - HauteFlair

Bra Sizing lululemon EU

Comparing Cup Sizes: A vs. B vs. C vs. D Cup Size

Bra Sister Sizing: Unraveling the Mystery of Perfect Bra Sizes - HauteFlair