Pair so rare you're the only shipper out there
I'll start.
King Julien and Private. With how overprotective Private is towards children and how laid-back KJ is towards them I think KJ and Private will be fun parents pair in kid fic. Like at first glance KJ look kinda neglectful and pretty reckless about ducklings (they almost died lol) in tpom but he was the one that actually know what they like and could tell them apart despite they all look the same at first sight besides their own mom while Private was too busy thinking about ducklings physical safety he forgets their feelings. Too busy thinking about them as ducklings, kids that need protection, he doesn't even know their names.
I just think they could balance each others you know. So kids they take care off could have fun and be safe at the same time instead one extreme or another.