If you loved Crayon Shin-chan: Burst Serving! Kung Fu Boys ~Ramen Rebellion~, try Crayon Shin-chan: Fast Asleep! Dreaming World Big Assault!
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

Crayon Shin-chan: Burst Serving! Kung Fu Boys ~Ramen Rebellion~
→
Try this next

Crayon Shin-chan: Fast Asleep! Dreaming World Big Assault!
What they share
Both films are directed by Wataru Takahashi, and they both carry the playful mood tag, and they sit in Adventure / Animation / Comedy territory. If that's the register that drew you to Crayon Shin-chan: Burst Serving! Kung Fu Boys ~Ramen Rebellion~, the second film will land in a comparable space — through a different lens.
playful
What Crayon Shin-chan: Fast Asleep! Dreaming World Big Assault! is
Dreams get weird for the Nohara family. A big fish eats them in a shared nightmare. It turns out the whole town had the same bad dream, which is just a little too coincidental.