So horror comics? Kinda out of the question, at least the way they had been done to that point. A series like MARVEL TALES, which had been running for years, made a shift from really cool horror to adventure and sci-fi in 1955. MARVEL TALES #116 from July 1953 actually had a story called “Werewolf by Night!” which will provide a nice call-back in the ‘70s.
All the Atlas books shifted from horror monsters to more sci-fi style monsters. So, while the Code meant we’d no longer have stories of zombies or murder skeletons, who knows if we’d have gotten Jack Kirby, Steve Ditko, and folks creating amazing monsters such as Fin Fang Foom, Groot, and more in a Code-less world.
I often mention the ‘70s boom of Marvel horror (and kung fu and other genre) stories and that’s in part because the Comics Code Authority rules changed, and in 1971, stories featuring vampires, ghouls, and werewolves were fair game. That’s how we got TOMB OF DRACULA, Werewolf by Night, Son of Satan, Ghost Rider, Morbius the Living Vampire, Frankenstein’s Monster, Manphibian, Man-Thing, Satana, Blade, the Darkhold, and SO much more.
Another thing that happened here and through the ‘70s at Marvel was the launch of tons of non-Comics Code Authority-branded black and white, large format magazines. We had kung-Fu, swords and sorcery, humor, sci-fi and more—but of course we had horror mags! HAUNT OF HORROR, DRACULA LIVES, MONSTERS UNLEASHED, TALES OF THE ZOMBIE, VAMPIRE TALES, and a few others. A number of these you can check out on Marvel Unlimited, and they had several black and white comics stories, plus editorials and prose features.