A few years ago I went with the M3 In-Ceilings and traded in my Qs8's when I was just doing 7.1. For the wall speakers I have M22 onwalls. I find for Atmos the direct radiating M22s do better than the quadpolar Qs8s did as you don't want the enveloping features. I'm sure you could use other speakers for the ceilings, maybe figure a way to mount onwalls. I do like the directional tweeters of the M3 inceilings to help dial in the sound.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85