I also like 'A Day in the Life of Four Shinobi'. This is more of a humorous take. It shows the daily antics of Sakura, Ino, Hinata, and Tenten. From Ino's attempts to get Sakura to admit she likes a certain boy, to Hinata's shy but endearing moments, and Tenten's constant weapon - related jokes. It's a light - hearted read that gives a great insight into their characters.
A really good one is 'The Bond of the Four'. In this fanfiction, the four girls face a powerful enemy together. It starts with them being a bit at odds with each other due to their different personalities. But as the story progresses, they realize that their differences are what make them a strong team. They combine their powers in a unique way to defeat the enemy, and in the end, their friendship is stronger than ever.
There's this fanfiction called 'The Four's Great Adventure'. It's set in a different land than the Naruto world we know. They are on a quest to find a rare herb that can save a village. Along the way, they encounter all sorts of strange creatures and challenges. Sakura uses her knowledge of plants, Ino tries to communicate with some of the animals, Hinata senses danger with her Byakugan, and Tenten fights off the physical threats. It's an exciting story full of twists and turns.