You can start by looking at popular fanfiction websites. Platforms like FanFiction.net and Archive of Our Own usually have a wide selection. Sort them by the number of reviews or ratings. The ones with high ratings and positive reviews are more likely to be good. Also, search for fanfiction written by well - known and respected authors in the Harry Potter fan community.
Well, to find the best end - of - Deathly Hallows fanfiction, you should first figure out what you're interested in. If you like a particular character's further development, search for fanfictions that focus on them. Then, check out the communities dedicated to Harry Potter fanfiction. They often recommend great works. Another tip is to look at the tags. If a fanfiction has tags that match your interests, like 'post - war', 'character - centric', or 'alternate ending', it might be worth reading.
Finding the best end - of - Deathly Hallows fanfiction can be a bit of a journey. One way is to ask other Harry Potter fans. They might have their own favorite fanfictions that they can recommend. You can also explore different genres within the fanfiction. For example, if you prefer action - packed stories, look for ones with tags like 'battle' or 'adventure'. And keep an open mind. Sometimes the fanfictions that seem the least likely to be good can surprise you with their creativity and depth.