Mission Impossible : Fallout - the helicopter chase near the end of the film
The new 4K Suspiria (1976 version) is a knockout ; it's a re-mix but it's great.
IT: Chapter Two is possibly even better than the mix on Part One.
You wouldn't expect it at first, but Netflix's 4K ROMA stream has possibly the most consistently superb Atmos track of any feature I've heard . It's all the more impressive as it doesn't rely on any bombastic sound effects or action scenes.
I was very impressed with the Atmos mix on A Quiet Place, especially the scene with Emily Blunt in the basement of the house listening to the creature scampering around on the main floor above.