These are some graphic novels detailing some outlying stories surrounding the main X-Men vs. Inhumans comic event from 2016(?) (see https://www.amazon.com/Inhumans-vs-X-Men/dp/1302906534). Honestly, not a lot of irreplacable information here. None of the books provide a complete story, and even taken together as a whole, provide a spotty story of the tragedy that was the destruction of New Attilan. Both All-New and Uncanny X-Men volumes contain that series’ annual (#1) and both Extraordinary and All-New X-Men volumes contain X-Men Prime #1. If I had to pick my favorite of the three, I’d go with the Uncanny X-Men’s story with its resumption of the title’s hunt for healers in an attempt to stem the M-Pox afflicting the world’s mutants. Elixir’s resurrection and horror at the discovery of his newfound powers is a heady concept to take on in a leotard book but I think that they handle it well. Worst is the All-New X-Men, which I just find to be poorly written and unimaginatively drawn. I know that, as the teen book, All-New tends to take a lot of softballs in the scripting department but they could do soooooo much better.
Mutants v. Inhumans – Wha’happen?
Uncanny X-Men: Superior - IVX (Volume 4) by Cullen Bunn
Extraordinary X-Men - IVX (Volume 4) by Jeff Lemire
All-New X-Men: Inevitable - IVX (Volume 4) by Dennis Hopeless