The story starts with more mature and grown-up characters making a last stand against Voldemort. It is still very much a fantasy story, and magic plays a crucial part in it. When I say realistic, I mean it in terms of portrayal of the Second Wizarding War and how it affects the Muggles, the detail that went into expanding the Harry Potter world, and the actions and emotions of the characters.
Harry Potter and the Last Horcrux by Mike aka Full Pensieve is one of the most well-written, and the most realistic HP fanfic that I've ever read. Harry Potter and the Last Horcrux Genre: Action/Adventure, Drama, Romance, Tragedy I've had to ignore some very promising fics, but it can't be helped as in all likelihood they will never be finished. This does not include sequels (which may be complete or not). All stories are complete unless stated otherwise.I do my best to keep the reviews spoiler-free, but I'm not a great reviewer so they might contain some information beyond what is mentioned in the story's summary.Other websites mentioned here also have similar filters in place. has its own content ratings system, so if you are concerned about content inappropriate for younger readers, make sure to check the story's rating first. Some stories contain more mature themes compared to the original heptalogy.
You are more than welcome, however, to share own favorites in the comments. Your taste might be different, and I'm sure I've missed plenty of good stories that I simply didn't have the pleasure of reading.