How can I write a good 'Ben Tennyson x OC fanfiction'?

Lad reborn in an alternate version of Ben Tennyson, in which the summer journey begins when Ben and Gwen are 15. The main character knows the canon very well and will use his knowledge. --- I don't know English at all, so I use Google Translate for translation. I hope it won't be that bad --- My patreon - https://www.patreon.com/zeckyll11

A chance to change, challenge destiny, make dreams a reality, and live a legend! A regular man gains a system that allows him to turn into a fish! In the modern world, a young man gains an unconventional system that gives him the power to transform into a fish! With this strange power, he shoots for the stars!

I, Leon Coulson, the nephew of the most adorable S.H.I.E.L.D agent Phil Coulson in history. This is the story of my good attitude everywhere in the Marvel world, and gradually become stronger. PS: Not my book this is a translation check out my other translation novel in my profile 2 chapter a day and every 50 power stone for 4 chapter PS: The timeline is dominated by the MCU universe.

How I become a Flaming Turkey and how to enjoy it. Oh yeah! I also work for Slutlife Inc for some reason. SI becomes Riser Phenex. Waifu Catalog fic.

Ben Tennyson as an adult finds himself in the D.C. universe after working on a null void projector and getting sucked in during a malfunction. With no hurry to get home, how will Ben enjoy his time in this universe? This is just for fun so no frequent uploads. It's rated R-18 but I don't know if I'm gonna do a harem. In this story, Ben is an adult and has master control and new additions. I DO NOT claim ownership of any characters and places mentioned in this story. Enjoy! Cover made by myself using Clip Studio Pro

THIS NOVEL IS NOT MINE AND ITS A TIPICAL CHINESE NOVEL, DON"T READ IF YOU CAN"T STOMACH CHINESE WAYS, OR ACTIONS. YOU HAVE BEEN WARNED. This is not mine, i found it and im only posting it here so others could see it too. All the credit belongs to the original author. Note: if the author want's me to take it down, write a message or review here and i would. Thank you.