There might be a fanfiction where Naruto and Hinata are on a date, and Gaara accidentally stumbles upon them. At first it's a bit awkward, but then they all end up having a friendly chat. Gaara shares some of his wisdom about leadership and relationships, and Naruto and Hinata are inspired. This fanfiction could explore the different personalities and how they interact in an unexpected situation.
In a certain fanfiction, there could be a tournament where all three are participants. Gaara with his sand powers, Naruto with his Nine - Tails chakra, and Hinata with her Byakugan. They each face different challenges during the tournament, and in the end, they realize that they are stronger together. They form an alliance that not only helps them in the tournament but also in future battles against common threats.