If you loved Pokémon Detective Pikachu, try Fullmetal Alchemist: The Sacred Star of Milos
A bridge between a film you've already seen and one most people haven't. Fullmetal Alchemist: The Sacred Star of Milos has roughly 25.3× fewer votes than Pokémon Detective Pikachu — 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.

Pokémon Detective Pikachu

Fullmetal Alchemist: The Sacred Star of Milos
What they share
Theysit in Action / Adventure / Fantasy territory. If that's the register that drew you to Pokémon Detective Pikachu, the second film will land in a comparable space — through a different lens.
What Fullmetal Alchemist: The Sacred Star of Milos is
You chase a rogue alchemist to a hidden valley. The Elric brothers soon find themselves caught in a local rebellion against oppressors, but a Philosopher's Stone could change everything. Murata's staging of airship battles stands out; he has a knack for retro machinery. The film lingers on themes of sacrifice.