If you loved Macross: Do You Remember Love?, try Macross Frontier: The Wings of Farewell
A bridge between a film you've already seen and one most people haven't. Macross Frontier: The Wings of Farewell has roughly 5.5× fewer votes than Macross: Do You Remember Love? — 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.
You already loved

Macross: Do You Remember Love?
→
Try this next

Macross Frontier: The Wings of Farewell
What they share
Both films are directed by Shoji Kawamori, and they both carry the epic mood tag, and they sit in Action / Animation / Science Fiction territory. If that's the register that drew you to Macross: Do You Remember Love?, the second film will land in a comparable space — through a different lens.
epic
What Macross Frontier: The Wings of Farewell is
Macross Frontier brings space opera drama. Ranka's career takes off as Sheryl's health declines. The film somehow ties up romance and war.