Wow back then Superman was as ubiquitous in DC Comics as Batman is now LOL.
I’m real sure the Superman movie wasn’t out for another year because I remember sitting and watching it two times in a row in a Philly suburb theater when I was in seminary …so that had to be 1978.
Action Comics
Adventure Comics
All-New Collector’s Edition C-54 (Superman vs Wonder Woman)
All-New Collector’s Edition C-55 (Legion Wedding)
All-Star Comics
Batman (he guest starred once)
Black Lightning (since it took place in Metropolis you could argue it was a Super Family book)
DC Special #29 (origin of the JSA)
DC Special Series #5 and #6
Justice League of America
Karate Kid
Limited Collector’s Edition C-52 (best of DC)
Secret Society of Super Villains (as an actor)
Shazam! (as a robot)
Showcase
Super Friends
Superboy and the Legion of Super-Heroes
Superman
Superman Family
World’s Finest
four months later in 1978 we get DC Comics Presents
Okay the two volumes of The Secret Society iof Super Villains are now on DC Universe Infinite Ultra! (featuring the one time they really do fight Superman)