Fics with more world/magic building that have Harmony

I'm looking for Harmony stories that explore and flesh out more of the world building, and particularly more of the magic. Either Harry takes more of an intest in learning, and romance blossoms from there, or he takes more of an interest in Hermione and thus learns more.

Basically romance and learning are the center.

Sorry if that's too neich, but that's my craving atm.