If you run across the original Dawn of the Dead blu ray grab it. Hard to find right now at a decent price. Also, Shout Factory has some great rereleases with killer extras definitely worth checking out.
https://www.shoutfactory.com/film/film-horror
I can say that The Thing Shout release is awesome. And the Escape from NY Shout release is by far the best blu ray version u can find. I also have Night of the Demons which is again completely awesome. I'm guessing most of these Shout releases rock. Check em out.