I have owned M*K S150s, which have a waveguide on the three tweeters that is suppose to be great for on and off axis response.
https://mksound.com/wp-content/uploads/2020/02/MK150series_brochure_0415_web.pdf
Why not go Triad LCR Silver or Gold, and use their INCEILING ROTATING SILVER/9 SAT for Atmos. They have huge rotation range and angles to get a good sweet spot. Not sure how good they are off axis but they seem to be a good for a dedicated room