If you loved Monster House, try A Boy Called Christmas
A bridge between a film you've already seen and one most people haven't. A Boy Called Christmas has roughly 5.3× fewer votes than Monster House — 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.
What they share
Both films are directed by Gil Kenan, and they sit in Family / Fantasy territory. If that's the register that drew you to Monster House, the second film will land in a comparable space — through a different lens.
What A Boy Called Christmas is
It seems someone decided to give the origin of Santa Claus the full fantasy-adventure treatment. Young Nikolas goes in search of his woodcutter father, lost somewhere far north near the legendary Elfhelm. What follows is indeed magical, endearing, and further proof that nothing is impossible, at least in movies.

