History: Batman and Superman — Partners, Fighters, Bed Sharers

The Man of Steel sequel will feature DC Comic's most prominent superheroes. They've met many times before.

Batman - Wikipedia

Batman vs Superman? Hell nah, Batman AND Superman : r/batman

Batman and Superman's first crossover comic saw DC heroes share a bed - Polygon

Batman and Superman are Friends, They Don't Always Need to Fight – Nonstop Nerd

What's the Deal with Batman and the Joker Anyway?

Opinion: Same superheroes, different day - The BayNet

Silver/Bronze Year 9 The Batman Chronology Project

I want a Superman and Batman movie that shows their friendship. They have the best friendship in all of comics, and I'm sick of them being betrayed as violent enemies. : r/superman

Batman, Batman Wiki

Batman And Superman Respects Each Other (Rebirth) – Comicnewbies

Batman: January 2022 DC Comic Solicitations - The Comic Book Dispatch