He could use elemental magic like fire, water, air, and earth magic. Since he already has an affinity for certain elements in the original Naruto series, it would be easy to translate that into magic forms. For example, his Rasengan could be transformed into a magic - infused attack.
Naruto might use healing magic. Given his kind - hearted nature, it would make sense for him to learn magic that can heal the wounded. Another type could be illusion magic, which he could use to outwit his opponents in a different way than his normal genjutsu. Also, there's a possibility of him using summoning magic, but instead of summoning normal animals, he could summon magical creatures.
Chapter 760, "Daoist, I've Long Heard of Your Great Reputation", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event.
Chapter 885, "Isn't This Wine?", is the clearest early answer because it turns Chang Song's situation into a concrete plot event. Early on, Daoist Shuiyun's words weighed heavily on Jiang Li's heart like a.... By the end, Even replacing all the tea in his room with wine..
A practical answer is Chapter 14, because it turns the idea into a concrete scene. The chapter opens with Lin Manru had a rare good night's sleep., adds pressure through The young, vibrant life was buried amid the vast expanse of white, along..., and ends on But clearly, Lin Manru was unable to.
Chapter 688, "Iron Sand Palm Skill Acquired!", is the clearest early answer because the violence around Jiang Li becomes final instead of hypothetical. The chapter gives readers a real answer by opening on Shao Changqing was very pleased with Bai Lu.
Chapter 925, "Elder Wu's Last Disciple!", is the clearest early answer because a shaky connection becomes usable in the plot. Early on, The man wearing glasses seated in the prominent position pointed to.... By the end, Don't even know who Wu Pei is?.
Chapter 812, "You’re Extorting Money!", is the clearest early answer because it turns Jiang Cheng's situation into a concrete plot event. The chapter turns that into something concrete by moving from Jiang Li actually called the police!
Chapter 829, "How can you not even keep an eye on one person?!", 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 Yu Li reached out to take Jiang Li's bag.
If you want the clearest chapter reference, go to Chapter 34. Early on, Seeing that the public sentiment wasn't quite right, Su Yinwan felt...; later, the chapter leans on It was she who had anonymously paid someone to write the critical article....
Chapter 780, "There's Someone in Your Room!", is the clearest early answer because it turns Captain Xing Mingfei's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Sister Li was a bit confused. and follows through with How did you discover my presence?!.