If you loved Digimon Adventure: Last Evolution Kizuna, try Digimon Adventure 02: The Beginning
A bridge between a film you've already seen and one most people haven't. Digimon Adventure 02: The Beginning has roughly 5.9× fewer votes than Digimon Adventure: Last Evolution Kizuna — 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.

Digimon Adventure: Last Evolution Kizuna

Digimon Adventure 02: The Beginning
What they share
Both films are directed by Tomohisa Taguchi, and they both carry the bittersweet, tender mood tags, and they sit in Adventure / Animation / Fantasy territory. If that's the register that drew you to Digimon Adventure: Last Evolution Kizuna, the second film will land in a comparable space — through a different lens.
What Digimon Adventure 02: The Beginning is
Pokémon meets Digimon. The DigiDestined navigate adulthood with their partners. Delivers nostalgic anime action.