If you loved Yu-Gi-Oh!: The Dark Side of Dimensions, try One Piece: Episode of Skypiea
A bridge between a film you've already seen and one most people haven't. One Piece: Episode of Skypiea has roughly 4.9× fewer votes than Yu-Gi-Oh!: The Dark Side of Dimensions — 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.

Yu-Gi-Oh!: The Dark Side of Dimensions

One Piece: Episode of Skypiea
What they share
Theyboth carry the playful, uplifting mood tags, and they sit in Adventure / Animation territory. If that's the register that drew you to Yu-Gi-Oh!: The Dark Side of Dimensions, the second film will land in a comparable space — through a different lens.
What One Piece: Episode of Skypiea is
Some islands just refuse to stay on the ground. A misplaced cloud-surfing tribe and a self-appointed deity make life messy for rubber boys on their way to golden real estate. The whole thing folds up neatly the second the credits roll.