If you loved Straight Outta Nowhere: Scooby-Doo! Meets Courage the Cowardly Dog, try Scooby-Doo! and the Curse of the 13th Ghost
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.

Straight Outta Nowhere: Scooby-Doo! Meets Courage the Cowardly Dog

Scooby-Doo! and the Curse of the 13th Ghost
What they share
Both films are directed by Cecilia Aranovich, and they both carry the cozy, playful mood tags, and they sit in Animation / Mystery territory. If that's the register that drew you to Straight Outta Nowhere: Scooby-Doo! Meets Courage the Cowardly Dog, the second film will land in a comparable space — through a different lens.
What Scooby-Doo! and the Curse of the 13th Ghost is
Cursed seaside carnival, autumn’s last chill. A locked chest rattles in the ruins of a funhouse, its handle frozen mid-turn. The gang uncovers a half-solved disappearance tied to a ghost they should have locked away. When the thirteenth specter slips free, the old case stirs. Needless nostalgia isn’t always a curse—see early Guillermo del Toro cartoons.