Arrancar by 2stupid
Hitsugaya and Hinamori are sent to England to check why no spirits or Hollows have been noticed lately. However, soon after they arrive, they find the answer— and it's not pretty. It turns out Voldemort has been creating a very powerful Hollow.
Crossover - Harry Potter & Bleach - Rated: T - English - Chapters: 18 - T. Hitsugaya - Complete
Mama Dragon by Stargaterdii
In short, the dragon seemed to think that the Shinigami captain was one of her babies.
Crossover - Harry Potter & Bleach - Rated: K+ - English - Humor - Chapters: 1 - T. Hitsugaya - Complete
A_Memory_of_a_Ghost by Cymru na Alethaira
When a white-haired boy transfers into Hogwarts as a third year, Remus Lupin wonders. Why is the name Hitsugaya Toshiro so familiar? And why does he have the feeling he's seen the boy before?
Crossover - Harry Potter & Bleach - Rated: T - English - Angst/Mystery - Chapters: 1 - Remus L. & T. Hitsugaya - Complete