Yes, you can post original stories on fanfiction. Fanfiction platforms are designed to allow users to write and share their own fictional works. However, it should be related to the existing fandom in some way, whether it's using the characters, settings, or concepts from the original work as a basis for your new story.
Well, there's DeviantArt. Although it's mainly known for art, you can also post your original stories there, especially if they are related to some form of art or have a unique visual aspect. Tumblr is another platform. You can create a blog dedicated to your stories and share them with your followers. And then there's Archive of Our Own (AO3), which is popular for fanfiction but also accepts original works.
One can post original stories on various platforms. For example, on a blog, you just need to create an account, log in, and then find the option to write and publish a new post. On social media platforms like Instagram or Facebook, there are also features to share stories. You can type or record your story and then click the post button. Make sure your story is unique and engaging to attract readers or viewers.
First, find a suitable platform like a blog website or a creative writing community. Then, create an account if required. After that, look for the option to create a new post or story. Make sure your story is well - written and engaging before you hit the publish button.
You can post your original stories on various online writing platforms like Wattpad or Medium. They have a large user base and are popular for sharing creative works.
Your own personal blog is a wonderful place as well. You have complete control over how you present your stories. You can customize the look and feel of your blog to match the mood of your stories. And, you can build your own brand and following over time without having to abide by the rules of other platforms.
One great site to post original stories is Wattpad. It has a large community of readers and writers. Many genres are welcomed there, from romance to science - fiction. It also offers various tools for writers to interact with their readers.