165 Haruhi Fujioka and the Goblet of Fire » by Storz Dumbledore smiled benevolently. "It is my great pleasure to inform you that Hogwarts will play host to the legendary wizarding tournament and to three schools: the proud sons of Durmstrang, the lovely ladies of Beauxbatons, and the charming students of the elite and prestigious Ouran Academy of Witchcraft and Wizardry."
Harry Potter & Ouran High School Host Club, K+, English, Fantasy & Humor, chapters: 22, words: 131k+, favs: 284, follows: 320, updated: 4/11/2020 published: 12/24/2017, Harry P., Haruhi F., Mori/Takashi M., Hikaru H.
27Kyoya's Long Road to Love » by winsomewest The Shadow King melts and finally discovers love after losing all hope of finding his soul mate. This story takes off from the end of the anime from Kyoya's point of view. It will travel through his love for Haruhi. To skip the slowburn start at chapter ten: White Christmas. xkyoya.haruhix
Ouran High School Host Club, T, English, Romance & Friendship, chapters: 19, words: 51k+, favs: 62, follows: 70, updated: 6/26/2019 published: 10/10/2018, Haruhi F., Tamaki S., Kyōya O.
11 Into the Basement » by Number1brat This is based on a post I saw on tumblr, where they finally get to Eren's basement and find the Host Club inside. Follows the Hosts and AoT's characters as they all try to survive and adjust to changes.
Ouran High School Host Club & Attack on Titan/進撃の巨人, K+, English, Adventure, chapters: 30, words: 28k+, favs: 39, follows: 26, updated: 6/30/2015 published: 4/15/2015, Haruhi F., Tamaki S., Armin A., Mikasa A.