I went looking for “thigh highs plus size” and found this site, SockDreams.
They looked cute and possible. I’m not a sock wearer myself nowadays, preferring a long dress with sandals for airflow (postmenopause hot stretches) but I’ve always had heavy thighs, from long before they were acceptable, so I sympathize.


SockDreams has upfront information about their socks’ dimensions, and carries plus sizes for both length and width