Knee high, yes. These are the ones I have:
3 Pack Copper Compression Socks - Compression Socks Women & Men Circulation - Best for Medical,Running,Athletic https://www.amazon.com/dp/B074MW1MTW/ref=cm_sw_r_cp_api_i_6F94G0JZ6YWYYZEJKQGP?_encoding=UTF8&psc=1
Walmart has some pretty cheap ones.
I really like these off of Amazon
3 Pack Copper Compression Socks - Compression Socks Women & Men Circulation - Best for Medical,Running,Athletic https://www.amazon.com/dp/B074MW1MTW/ref=cm_sw_r_apan_glt_fabc_NY1SWJZAKP0B5SER8KXD
They’re kinda like sports socks or soccer socks. They stop right below the knee. Amazon has tons.