Are there any interesting plotlines in 'naruto star forge fanfiction'?

Yes, there might be. One interesting plotline could be that the star forge is a source of ancient power that the Hidden Villages want to control. Naruto and his team must race against other ninja clans to reach it first. Along the way, they face many challenges and also discover new things about their own abilities in relation to this star - forging power. It could also involve some characters having to make difficult moral choices regarding the use of this power.

Definitely. For instance, a plot where the star forge is actually a portal to another dimension full of powerful enemies. Naruto, along with his friends, is accidentally transported there. They have to find a way back while also dealing with the threats in this new dimension. And the star forge's power might be the key to getting back home, but using it has its own risks and consequences. This could lead to a lot of character development and exciting battles in the fanfiction.

There could be. Maybe a plotline where Naruto has to use his shadow clone jutsu in a star forge environment to outwit an enemy. Another could be about Sakura using her medical skills to heal those affected by the strange energy of the star forge.