I tried Sony's WH-1000XM3 wireless noise canceling headphones at Best Buy. Holy moly, it was like I stepped into an anechoic chamber.
Unfortunately I won't buy it, because headphones like that make my ears uncomfortably hot. But I did pick up the WI-1000X NC earbuds, they perform close enough, and they're definitely a lot better than the Sony wired NC earbuds I had.