As far as I know, there isn't a widely known 'famous' fanfic specifically with these exact elements in a very common and well - known sense. But the fanfic community is vast, and there could be some great works out there that just haven't reached a huge mainstream level of popularity yet.
I'm not sure exactly which fanfic you're referring to. There could be many fanfictions involving these elements. You might want to check some popular fanfic websites like FanFiction.net or Archive of Our Own and search for stories with these keywords.
In Harry Potter fanfic, 'the exit sirius veil' could potentially refer to a concept related to Sirius Black and the veil in the Department of Mysteries. It might be a unique interpretation by the fanfic author where the veil has an 'exit' aspect, perhaps symbolizing a way to bring Sirius back or some connection to the afterlife that he is associated with.
I'm not sure specifically which 'harry kitsune naruto veil fanfic' is the best. You can try searching on some popular fanfic websites like Archive of Our Own. There might be some interesting ones there.
There are often fan communities dedicated to Tamora Pierce. Try joining one on a platform like Reddit. People there can point you to some great, clean Tamora Pierce fanfic. They might recommend ones that explore the backstories of the characters in a family - friendly way.
In a fanfic of this sort, the concept of Female Harry's metamorphosis similar to Naruto's change could bring a whole new dynamic. Maybe she stumbles upon the veil during one of her adventures at Hogwarts. The power she gains from it could be both a blessing and a curse. She has to learn to control it, just like Naruto had to control his new forms. And she might face challenges from those who fear her newfound power.
Another common theme could be identity. With the mix of different cultures and magic systems from Harry Potter, Naruto and the Kitsune elements, characters might struggle with their own identities. For example, a character from Naruto might have to adapt to the new magical concepts from Harry Potter while dealing with the Kitsune and veil related events. This can create a lot of interesting character development and internal conflict within the fanfic.
One great theme is the exploration of the different magical systems in Tamora Pierce's worlds. Fics might go deeper into how the magic works and how it affects the characters. Another theme could be the political intrigue within the kingdoms she creates. It can be really fascinating to see how different characters navigate the power struggles.