In this fanfic, it could be that Naruto's reanimation is not perfect. He has to struggle with some side - effects of being reanimated, like losing parts of his memory or having difficulty controlling his chakra. Meanwhile, he has to reunite with his friends and convince them that he is still on their side despite his reanimated state.
One interesting plotline could be Naruto coming back reanimated and having to face new enemies that his old friends can't handle alone. His reanimated state might give him unique powers or abilities that change the course of battles.
Maybe in the 'naruto is reanimated fanfic', Naruto is reanimated by an unknown force. He then has to figure out why he was brought back and in the process, he discovers a conspiracy within the ninja world that was hidden while he was alive. This could involve old foes working together in new ways.
Chapter 110, "The Plow Ox CP didn't even start before it ended", is the clearest early answer because it turns Brother Daniu's situation into a concrete plot event.
Chapter 49, "Mysticism Girl Jiang Li", is the clearest early answer because it turns Sun Tzu's situation into a concrete plot event. It opens with My phone!!!" Jiang Yan's roar echoed continuously through the... and closes on Thinking this, Jiang Yan marched forward, pulled Jiang Li down from....
Chapter 23, "Became Trending for Being Scolded", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. Early on, Although Jiang Li exerted very little strength, Jiang Yan instantly....
Chapter 55, "I Can Prove Everything Miss Jiang Said Is True!", is the clearest early answer because it turns Director Sun's situation into a concrete plot event.
Chapter 38, "Pretending to be a Top Student? You Must Have Forgotten Your Own College Entrance Exam Score!", is the clearest early answer because it turns Princess Disease's situation into a concrete plot event.
Chapter 286, "I Won't Let Anything Happen to Either of Us", is the clearest early answer because it turns Won's situation into a concrete plot event.
Chapter 129, "Spent Millions Only to Drive Traffic to Jiang Li?!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with When they saw that the live chat was full of praise for Jiang Li,...
Chapter 334, "Hanqiong's Seven Divisions, Moao Mountain, Beishuo Revisited 5", is the clearest early answer because it turns Hong Yuru's situation into a concrete plot event. A useful checkpoint is the way the scene starts with According to Fan Kui, let's first explore northward together to see... and follows through with Beining Mountain, seven camps, judging by this kid's cultivation and....
Chapter 309, "Then Come Die with Me!", is the clearest early answer because it turns Chixia Village's situation into a concrete plot event. It opens with In the dim and damp underground room, only a single incandescent bulb... and closes on Hahahaha, you want to kill me and become the true Gu Yu?.
Chapter 345, "Luo Ming, Mirror Valley Defense Commander, Beast Tide, Great Xia's 6 Armies", is the clearest early answer because it turns Redwood Ridge's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Great Xia, Year Seven, September Ninth, the latter half of the night... and follows through with In the first half of last year, Li Baihe, Xu Kang, and Shang Ping....