If you loved The Little Mermaid: Ariel's Beginning, try Tinker Bell and the Pirate Fairy
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.
You already loved

The Little Mermaid: Ariel's Beginning
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Tinker Bell and the Pirate Fairy
What they share
Both films are directed by Peggy Holmes, and they both carry the cozy mood tag, and they sit in Animation / Family territory. If that's the register that drew you to The Little Mermaid: Ariel's Beginning, the second film will land in a comparable space — through a different lens.
cozy
What Tinker Bell and the Pirate Fairy is
A DisneyToon joint that seems to have been focus-grouped to death. A fairy runs off and joins some pirates. This is, as the title suggests, an origin story for Captain Hook, for those who felt the character was underexplained.