Idunno after getting some chifi stuff like hifiman, moondrop, timeless that outperform euros for fraction of the cost (hd600 is a ridiculous 300+ eur for ancient set of cans vs hifiman h400i that could be had for 90 bucks at one point)
A shout out to Austrian Audio (former AKG engineers), Focal, and Meze. Some of the best high-end audio companies for headphones, not that beyer is bad, I just don't personally enjoy their sound signature.
Also on the amp side of things Analogvibes is a German company producing diy tube compressors and equalizer kits for music production. On the pricey side for sure but the quality cannot be beat, they sound and feel absolutely beautiful.