Only headphone that springs to mind is the Shure SRH940…especially seeing as you found the M50X too recessed. Seeing the thread title I considered the older brother SRH1540, but that is not what you’re looking for. Way too warm.
Nahh you’ll probably dig the 940 sound…even if the looks are miles away from just about any Grado that isn’t the gold SR325
Edith: scratch that! Another really good option is the Sony MDR-7506. Fantastic for folks with a penchant for forward vocals
Double-Edith: the presentation you’re after only really exists in Grados and the 7 series from AKG (K612/701/702/712)..but they’re all openback as well. Safe to say, if you dig the forward vocals of Grados I’m fairly certain you’re going to love a K612 or a K702. They’re also way more comfortable and actually provides you with quite the large musical space. Anyhoo just a friendly rec on my behalf.
After thinking more about closedbacks that could possibly sound anywhere near to the above…nope, it’s still just the Shure and the Sony I’d bank on. Both of which happen to be great studio headphones - particularly for picking up stuff in the mix on the fly. The reason why is because, just like Grados and AKGs, they too come with some added energy right smack in the presence-region. This effectively makes vocals and a whole host of instruments ‘pop out’ in the presentation.
You will most likely not find modern headphones tuned like this, I certainly can’t think of any. I think people generally prefer the sound of closedbacks because of the added bass capabilities compared to openbacks ie they get their ‘slam’.
Only real way I can see you rocking something wireless is if you get an ES100 or a BTR5 and ultimately make the SRH940 wireless
Best of luck!