There are so many on the market, it will depend on how much moneyyouo have to spend, what headphone amplifier you will use, and what style you like (around the ear, in the ear, on the ear). I recommend that you check out the following websites for more information:
http://www.headfi.com/
http://www.headwize.com/
http://www.headphone.com/
http://www.goodcans.com/
Some are commercial and sell products, including their own, and others are forums.
I own the Sennheiser 600, an Antique Sound Lab amp, and nice cables. I like around the ear phones for longer listening. The Senns are detailed without being fatiguing. The ASL amp is tube and to my ears is very melodic. Once you have done some investigating, come back. I'm sure the folks here will be quite helpful. Happy hunting!
http://www.headfi.com/
http://www.headwize.com/
http://www.headphone.com/
http://www.goodcans.com/
Some are commercial and sell products, including their own, and others are forums.
I own the Sennheiser 600, an Antique Sound Lab amp, and nice cables. I like around the ear phones for longer listening. The Senns are detailed without being fatiguing. The ASL amp is tube and to my ears is very melodic. Once you have done some investigating, come back. I'm sure the folks here will be quite helpful. Happy hunting!