Andrew Scheps use Sony mdr-7506. Haven’t tried them myself but I’m sure they are ok and nothing special. He makes some interesting points about mixing on headphones. Basically listen to music on the same headphones you mix on. And you probably need to check the mix on speakers afterwards because it does sound different in an acoustic space. But according to him the adjustments you have to make (like too much or too little reverb) can be heard on pretty much any speakers.