You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of various fanfictions, including ones related to Tokyo Ghoul, so there's a good chance you'll find naki ghoul fanfiction there.
Another option could be Wattpad. Although it has a wide range of content, including fanfictions. But be aware that it might not have as extensive a collection specifically for naki ghoul fanfiction as AO3 or Fanfiction.net. You can still search and see if there are any interesting pieces there.
One highly recommended naki ghoul fanfiction is 'Naki's Redemption' on AO3. It delves deep into Naki's character, exploring his past and his journey towards redemption in a very engaging way.
One idea could be that the reader is a new ghoul in the area and Naki takes it upon himself to show them the ropes. Maybe he teaches them how to hunt without getting caught. Another plot could involve the reader being injured and Naki protecting them from other ghouls who might see them as easy prey. A third plot idea is that the reader has a special ability that Naki discovers and they team up to use it for their survival in the harsh ghoul world.
First, really understand Naki's character. He's tough but has a soft side. So, show his protective nature towards the reader. Let his actions be guided by his loyalty and his need to belong. For the reader, give them clear goals and fears. Maybe they fear being discovered as a ghoul - lover or they have a goal of helping Naki find his place in the ghoul world. Use their interactions to drive the story forward.
You can try some popular manga reading platforms like MangaDex or MangaReader. They usually have a wide range of manga available, including Tokyo Ghoul.
The official publishers' websites could be a good place to start. Another option is to look for subscription-based manga services that have a wide range of titles, including Tokyo Ghoul. Just make sure to choose legal and reliable sources to enjoy the manga.
You can try looking on popular online book platforms like Amazon or Barnes & Noble. They might have the Tokyo Ghoul novels available for purchase or reading.
You can try websites like Archive of Our Own (AO3). It has a large collection of fanfiction for various series, including Tokyo Ghoul. Many talented writers share their works there, and you can easily search for the Tokyo Ghoul fanfics you're interested in by using relevant tags.
You might find Tokyo Ghoul manga online on sites such as Manganelo or MangaDex. However, not all of these sites are reliable or legal. It's best to support the creators by using legitimate sources if possible.
There are several options. One could be Viz Media, which sometimes offers legal access to Tokyo Ghoul manga. Another could be Crunchyroll, though their availability might vary. Just make sure to look for legitimate sources to support the creators.
You can try some popular fanfiction websites like FanFiction.net or Archive of Our Own (AO3). Just search for 'Naruto is a Ghoul' in their search bars, and you should be able to find relevant fanfictions.