First, understand the character of Yujiro Hanma. Know his personality traits like his extreme strength and pride. Then, create your OC with a distinct personality. Start with an interesting encounter between them, like a chance meeting at a fighting tournament.
The best way to know where to start is to look for discussions on manga-focused websites. Fans often share their experiences and advice on continuing after the anime. Another option is to check social media groups dedicated to Baki Hanma to get suggestions from fellow fans.
If Naruto were to act like Yujiro in a fanfiction, it would change his relationships too. He would no longer be the overly - friendly Naruto we know. He might become more aloof and selective with his friendships. His interactions with Sasuke could be different. Instead of constantly trying to bring Sasuke back with kindness, he might use a more forceful and intimidating approach, just like Yujiro would deal with those who oppose him.
The authors of the best beat novels include Jack Kerouac. His works are very representative of the Beat Generation. He was known for his spontaneous prose. Then there's William S. Burroughs who had a very edgy and experimental writing style in his novels. And don't forget Allen Ginsberg. His poetry - like prose in 'Howl' was a huge influence on the Beat movement. There are also other authors like Richard Brautigan who added their unique voices to the genre.
I think Ursula K. Le Guin. Her works often go beyond the typical tropes of sci fi novels. For example, in 'The Left Hand of Darkness', she explores gender in a really unique way within a science - fictional setting. Another one is Philip K. Dick. His novels like 'Do Androids Dream of Electric Sheep?' are so complex and thought - provoking that they can be considered to 'beat' many regular sci fi novels in terms of depth and originality.