If you loved The Little Mermaid: Ariel's Beginning, try Mickey's Twice Upon a Christmas
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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Mickey's Twice Upon a Christmas
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 Mickey's Twice Upon a Christmas is
The Mouse House figured out how to do Toy Story, then applied it to their own back catalog. This animated anthology follows Mickey and the gang as they learn important lessons about friendship and Christmas. It is probably ideal for someone.