If you loved Superman/Shazam!: The Return of Black Adam, try DC Showcase: Green Arrow
A bridge between a film you've already seen and one most people haven't. DC Showcase: Green Arrow has roughly 8.4× fewer votes than Superman/Shazam!: The Return of Black Adam — it's a deeper cut, not a mainstream recommendation. Here's what they share, and what the second one does that the first one doesn't.

Superman/Shazam!: The Return of Black Adam

DC Showcase: Green Arrow
What they share
Both films are directed by Joaquim Dos Santos, and they both carry the playful mood tag, and they sit in Action / Adventure / Animation territory. If that's the register that drew you to Superman/Shazam!: The Return of Black Adam, the second film will land in a comparable space — through a different lens.
What DC Showcase: Green Arrow is
You're Green Arrow, stuck guarding a princess at the tarmac. But a league of assassins is closing in. The fate of a kingdom hangs in the balance. Dos Santos's direction nods to classic action animation: crisp lines, dynamic angles, and a tight runtime leave you wanting more.