If you loved Scooby-Doo! Return to Zombie Island, try LEGO Scooby-Doo! Blowout Beach Bash
A bridge between a film you've already seen and one most people haven't. LEGO Scooby-Doo! Blowout Beach Bash has roughly 5.6× fewer votes than Scooby-Doo! Return to Zombie Island — 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.

Scooby-Doo! Return to Zombie Island

LEGO Scooby-Doo! Blowout Beach Bash
What they share
Both films are directed by Ethan Spaulding, and they both carry the cozy, slow burn mood tags, and they sit in Animation / Comedy / Family / Mystery territory. If that's the register that drew you to Scooby-Doo! Return to Zombie Island, the second film will land in a comparable space — through a different lens.
What LEGO Scooby-Doo! Blowout Beach Bash is
Blowout Beach on a sunny day with seagulls crying, a beach ball bouncing, Ghost Pirates looming over the shore. A spooky pirate ship crashes the party, threatening fun in the sun. This animated mystery is a lighthearted summer romp.