I love those Dollar Comics too! I recall picking up the first WORLD'S FINEST in that format (#244) and getting the following response from the elderly cashier at my local drugstore : " A dollar funny book ?!!!! (I was 12 at the time)

Besides Superman/Batman, WORLD'S FINEST had Green Arrow and Black Canary (art by Mike Nasser, Trevor VonEeden and others), Vigilante (#244-248), Wonder Woman (in WWII adventures, #244-252), Creeper by Ditko (#249-255) , SHAZAM! (Don Newton art, #253-282), Hawkman (#264-282) , Black Lightning, Aquaman (#263 & 264), Red Tornado, Plastic Man (#273), and Zatanna (#274-277).

Other Dollar Comics series I recommend are BATMAN FAMILY (#17-20) which moved over to DETECTIVE COMICS (#482-495), SUPERMAN FAMILY (#182-222), and ADVENTURE COMICS (#459-466). I loved the diversity of material in these books: this was probably the closest any publisher came to recapturing what it was like to pick up Golden Age comics in the early 1940's (when 10-cents got you 64 pages of all-new comics) .

I also loved DC's 100 PAGE SUPER-SPECTACULARS from the 70's, though those were largely comprised of reprints.