Yes, the 99 classics with new pads and balanced cable.
In all seriousness, for the money, these are hard to beat but it’s all subjective of course and really should go without saying by this time.
You could try the TH-X00 Purplehearts (or any TH-X variants) with driver dampening ONLY from Lawton audio with Ori pads. Will be about $550 total and to me a clear upgrade without breaking the bank.
But the classics TO ME are one of the best bang for the buck and I’d pay even more.
Surprisingly they scale up well on my home system and enjoy them A LOT. It took me by surprise how well they sounded with Mjolnir2/Gumby gen5 as these are my portable with Oppo HA-2 or DFR
W/IPhone 7+.