https://drop.com/ has some of those and the prices can be good even after exchange and shipping, I've ordered from them before.
My gaming headset (Sennheiser PC38X from Drop which I've really liked) is feeling a little old, the volume on it crackles when adjusting and one side will be muted if you don't fiddle with the dial, and I haven't used the mic in forever so I was thinking of getting something.
I like the open back ones, was thinking of the DT990 Pro. Drop also has HIFIMAN HE4XX and HE5XX for $169 and $199USD.
My PC38X are incredibly comfortable, I can wear them all day no issues. But the newer Sennheisers have a little gap in their headband cushion and I don't know why but it actually causes me pain after a while. I thought I has having some kind of weird burning top of head headache but nope it was just the headphones.