I absolutely adore fanfics where Harry teams up with the goblins—it's such a fresh twist on the usual wizarding world dynamics. One of my favorites is 'Harry Potter and the Goblins' Revenge', where Harry, fed up with the Ministry's corruption, turns to the goblins for help. The author does a fantastic job of fleshing out goblin culture, making them more than just bankers with grudges. The alliance leads to some epic battles and political maneuvering, with Harry learning their language and even adopting some of their customs. It's a wild ride from start to finish.
Another gem is 'Goblin Friend', where Harry befriends a young goblin during his first trip to Gringotts. Their bond grows over the years, and by the time Voldemort returns, the goblins are ready to fight alongside Harry. The story delves deep into goblin magic, which is often overlooked in the original series. The way the author blends action with world-building is just chef's kiss. If you're into stories that explore the untapped potential of the wizarding world's marginalized groups, this one's a must-read.