Maybe Sherlock Holmes daughter and she goes to Hogwarts and she has the powers of the zodiac signs
I don't fully understand what that would entitle but as the daughter of Sherlock Holmes she basically has his abilities and then add magic to the mix
Possible powers:
Elements
Time
Temperature
Animals
Pranks and stuff
Maybe emotional
The dead?
Dragon rider?
And other stuff
Seer- like the centaur where they can see it written in the stars
Pairings?
Remus Lupin- marauders era
George Weasley
My personal favorite- Charlie Weasley
I may do this story with Charlie but feel free to write your own