I've heard of 'The Bloodline Connection - Naruto x Fem Haku'. In this fanfiction, the author focuses on the cultural and family aspects related to their bloodlines. Naruto and Fem Haku are brought together by a series of events that are tied to their bloodline heritage, and it's a really engaging read as it explores their backstories in relation to their bloodlines.
One popular 'bloodline naruto x fem haku fanfiction' could be 'Bloodline's Bond'. In it, Naruto discovers a new side of Haku as a female character and they embark on an adventure that explores their unique bloodlines together. It has some really interesting takes on how their powers could interact.
There's a fanfiction titled 'Bloodline Fusion: Naruto and Fem Haku'. This story delves deep into the idea of Naruto and Fem Haku combining their bloodline abilities to face a common enemy. It shows their growth as characters and how their relationship evolves as they train together to master their combined powers.