I'm a 6'1" man with size 3 feet which means every time they measure my feet at a shoe store, the Brannock device tells me I'm not a man
I was born with feet in the 1st percentile of the population and they stayed that way even despite getting taller. Now every shoe shopping experience is awkward af.
I had a girlfriend who had the inverse of your problem — her feet were far too large for shoes aimed at women. She ended up becoming friends with a bunch of drag queens, and finding that the specialist store they got their shoes from was the best place for her
I have this problem, but width only, not overall size.
I just wear men’s shoes, and even those are wicked hard to find. There isn’t really a category of shoes for my size (not big enough overall for drag shoes to be right, but far too wide for normally sized women’s shoes - I wear 6-8 [brand dependent] 4EW in men’s) and I’m not willing to spend a fortune on shoes to have cute custom ones made, so men’s shoes and sandals are my options. Boring.