Kindle Vella is a serialized fiction platform by Amazon. It launched in the summer of 2021 and allows writers to post stories one episode at a time. They offer the first three episodes of any story for free. To unlock further episodes requires the purchase of tokens.
I began posting stories to Kindle Vella in July 2021. Here are all the stories I have on that platform. If it’s marked as in progress, that means the story is actively being written and episodes will post regularly.