I would recommend Focal… maybe Clear. I own Utopias. They are exceptionally easy to drive and have excellent sound quality.
One reason I wouldn’t get carried away buying super expensive headphones is using the output from the Rogue might be an inferior output. Some outstanding very high end integrated amps have low power / poor quality headphone outputs. I don’t know this… But in every case I tried, a separate high quality headphone amp has been vastly superior. Perhaps someone here in the forum has done comparisons. It is very possible that say a Woo WA6SE and a set of $1,000 Focals would sound much better than better Focals powered directly from the Rouge. You can see my headphone system under my ID.
I also have Audez LCD, Sennheiser HD800, Beyerdynamic T2 (incredibly musical… but harder to drive). Denon 5000.