Please note that these stories are often paywalled content, unlike the often-freely available drama tracks. As such, rule number zero is do not be a snitch.
Rule #1 is support the official release, even if you cannot read it. You can pick up ebook copies of these books on Bookwalker.jp for minimal effort; in fact, I've written a guide to doing it!
I know it can seem silly to buy something you can't read, but please: support the official releases. I do not want to have to make this inaccesible, but if I feel sufficient cause I will lock this down in a way that demands proof of purchase to gain access.