The Roundup Begins
https://grrrgraphics.com/the-roundup-begins
https://www.businessinsider.com/the-worlds-top-10-fashion-brands-are-worth-122-billion-2015-7
https://www.insider.com/hierarchy-of-fashion-brands-around-the-world-2017-9
another article, from 2018
https://ceoworld.biz/2018/10/01/the-top-20-fashion-brands-2018/