i'm not a headphone fanatic, so i cant answer your question. but, you should look on massdrop. its a website that gets a ton of people to agree to buy a product and the manufacturer gives large bulk discounts. they have $300 headphones for like $100. my buddy got a few things from there.
this one seems pretty well reviewed:
https://www.massdrop.com/buy/massdrop-x-hifiman-he-350