B-oo-ks.net is suited for self-published books and interactive stories. It is an example of what can be accomplished for clients who sell books or write. A blog, articles, poetry, or any other writing could be easily added to a site like this in text, html, pdf, digital download paywall, or in any other form.
Any writing for sale can be integrated as products into any platform you already have, or into the easiest one available for what you are selling and how you wish to be paid.
B-oo-ks.net is currently a template site for an example of what can be done, but there is an interactive stories space where I may flex fictional or invite others to do so in the future.