If you loved Chainsaw Man - The Movie: Reze Arc, try Fate/stay night: Heaven's Feel III. Spring Song
A bridge between a film you've already seen and one most people haven't. Fate/stay night: Heaven's Feel III. Spring Song has roughly 4.2× fewer votes than Chainsaw Man - The Movie: Reze Arc — 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.

Chainsaw Man - The Movie: Reze Arc

Fate/stay night: Heaven's Feel III. Spring Song
What they share
Theyboth carry the foreign gem mood tag, and they sit in Action / Animation / Fantasy / Romance territory. If that's the register that drew you to Chainsaw Man - The Movie: Reze Arc, the second film will land in a comparable space — through a different lens.
What Fate/stay night: Heaven's Feel III. Spring Song is
A trilogy wraps up with magical martial arts and a hero stuck in emotional quicksand. Shirou and Rin try to stop the Holy Grail War while Sakura’s inner darkness threatens to swallow everything—and Zouken still can’t keep his hands to himself. Someone finally gets a song that isn’t a theme.