If you loved One Piece: Clockwork Island Adventure, try One Piece: Chopper's Kingdom on the Island of Strange Animals
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.

One Piece: Clockwork Island Adventure

One Piece: Chopper's Kingdom on the Island of Strange Animals
What they share
Both films are directed by Junji Shimizu, and they both carry the cozy, playful mood tags, and they sit in Action / Adventure / Animation territory. If that's the register that drew you to One Piece: Clockwork Island Adventure, the second film will land in a comparable space — through a different lens.
What One Piece: Chopper's Kingdom on the Island of Strange Animals is
You wash ashore in a riot of geysers, landing alone on an island where the animals crown you king. While your crew searches the far shore the horn hunters arrive, bowing to a violinist who chews horns for power and eyes the island’s greatest treasure. The animals taught you something about fear you’re about to teach him.