Open or sealed? Open headphones tend to provide better sound, while closed headphones tend to block out outside noise.
Actually, closed headphones these days are really good. Open designs make it easier, I think, to engineer good headphones, because you don't have to worry about the sound reflecting back towards the ears (it just exists the other side, hence open). But these days closed headphones are excellent as well.
Anyway, if you don't mind open headphones, the Koss KSC75s are amazing. They're clip-ons, but don't worry! They're comfortable. The ear clips are a metal wire embedded inside a hardish rubber. They can be bent to fit your ears.
Seriously, the KSC75s cost about $15 and go toe to toe with headphones that are around $80. I'm not kidding. I think it's the fact that, the drivers inside them were designed in like 1982, and since then all R&D has been payed for and manufacturing has gotten so good that they can sell a ridiculously good product for next to nothing.
The only downside to the KSC75s is that they look like UFOs.

But you're an art *** just paint them lol
Bassoon, n. A brazen instrument into which a fool blows out his brains.