Buy exactly the same socks.
That is what I do.
Same color same brand
Toss the rest
One of my direct managers was pathological re dressing and not wasting his time.
Every shirt was a plain white Oxford dress shirt with no buttons on the collars. His socks were all black and mid calf in length.
He wore black suit jackets and black dress pants with no cuffs. He didn’t use cufflinks nor tie clasps. His ties were basically shades of black stripes and only one brand.