Thanks in advance,
What music do you listen to?
What is your budget?
Do you need them to be portable?
Do you need them to be sealed?
Headphones that come to mind are:
Sony XB-500 for a bass head
Audio Technica ATH-M50 for Techno / Trance / Electronica
V-Moda M80 for style, durability, and a little extra bass
Sennheiser HD-25-1-ii for a more neutral sound signature