I cannot, for professional reasons, point you to any that I have personally worked on. However, Smashing Magazine (https://www.smashingmagazine.com https://www.

I cannot, for professional reasons, point you to any that I have personally worked on. However, Smashing Magazine (https://www.smashingmagazine.com https://www.smashingmagazine.com) comes to mind as one of the early adopters of both highly semantic BEM and an SSG methodology.