If you loved He-Man and She-Ra: The Secret of the Sword, try The Adventures of Mark Twain
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

He-Man and She-Ra: The Secret of the Sword
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The Adventures of Mark Twain
What they share
Theyboth carry the playful mood tag, and they sit in Adventure / Animation / Family / Fantasy territory. If that's the register that drew you to He-Man and She-Ra: The Secret of the Sword, the second film will land in a comparable space — through a different lens.
playful
What The Adventures of Mark Twain is
Claymation elevates Twain’s cranky ghost odyssey above the usual stiff-upper-lip kid quest. Tom, Becky, and Huck sneak aboard a comet-bound balloon piloted by a petulant Twain determined to end the universe. They deliver a puffy lecture straight out of the writer’s own notebooks before the ship’s clockwork heart winds down.