If you loved Dexter's Laboratory: Ego Trip, try Legend of the Galactic Heroes: Golden Wings
A bridge between a film you've already seen and one most people haven't. Legend of the Galactic Heroes: Golden Wings has roughly 6.4× fewer votes than Dexter's Laboratory: Ego Trip — 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.

Dexter's Laboratory: Ego Trip

Legend of the Galactic Heroes: Golden Wings
What they share
Theysit in Action / Animation / Drama / Science Fiction territory. If that's the register that drew you to Dexter's Laboratory: Ego Trip, the second film will land in a comparable space — through a different lens.
What Legend of the Galactic Heroes: Golden Wings is
You're a young officer in a crumbling empire, swearing loyalty to a regime that took your sister. You climb the ranks with your closest friend at your side, trading ideals for influence, and then the war finds its rhythm. The film lingers like a strategy board lit by candlelight, 1990s anime framed as cold military portraiture.