If you loved The Death of Superman, try The Death and Return of Superman
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Jake Castorena, Sam Liu, and they both carry the epic mood tag, and they sit in Action / Animation / Drama / Fantasy / Science Fiction territory. If that's the register that drew you to The Death of Superman, the second film will land in a comparable space — through a different lens.
epic
What The Death and Return of Superman is
You watch Metropolis as Doomsday descends. Superman clashes with the monster, even as the Justice League falters, but the hero falls. The world mourns. Animated adaptations let the source material breathe. Superman's legacy looms.

