If you loved Dragon Ball Z: Cooler's Revenge, try Dragon Ball Z: Lord Slug
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.
What they share
Both films are directed by Mitsuo Hashimoto, and they sit in Action / Animation / Science Fiction territory. If that's the register that drew you to Dragon Ball Z: Cooler's Revenge, the second film will land in a comparable space — through a different lens.
What Dragon Ball Z: Lord Slug is
You face a Super Namekian named Slug arriving to claim Earth. Then Goku and the Z Fighters rally to turn the tide. Hashimoto stages sluggish early action that suddenly snaps into clean, kinetic brawls.

