If you loved Godzilla, Mothra and King Ghidorah: Giant Monsters All-Out Attack, try Gamera: Guardian of the Universe
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

Godzilla, Mothra and King Ghidorah: Giant Monsters All-Out Attack
→
Try this next

Gamera: Guardian of the Universe
What they share
Both films are directed by Shusuke Kaneko, and they both carry the foreign gem mood tag, and they sit in Action / Fantasy / Horror / Science Fiction territory. If that's the register that drew you to Godzilla, Mothra and King Ghidorah: Giant Monsters All-Out Attack, the second film will land in a comparable space — through a different lens.
foreign gem
What Gamera: Guardian of the Universe is
Rust-streaked hull on jagged coral. A bead, pearly and humming. Two strangers chase separate omens. One becomes a monster magnet, the other an ancient shield. Gamera emerges like a crashed comet mid-’90s kaiju revival.