my personal favorite is Kiki's Delivery Service, as it's a film that doesn't have common Disney/Western tropes of trauma or horrible things happening. the main character has a loving family, she is strong willed, sticks to her convictions and is honest/empathetic/kind. there's action and conflict in a non violent way and the characters are sane. while I don't have kids, it's also appropriate for children and has lessons that are valuable for all ages.
the animation is beautiful to boot and the story is fun. I honestly think it's an example of a perfect film.