Ask HN: So where do I put an article, so it's discoverable, if not on Medium?

So I have a small post I want to drop somewhere. It's on a fairly niche, amateur-to-semi-advanced technical topic - basics really, but I know more people had the same issue. And I'm guessing more will have in the future, so I'd like it to be googleable.

I used to blog, but I'm not starting one again right now. I know how to organize SEO, SM promotion, how to setup domain and hosting, but I don't want to. I just want to write a single post that will solve single problem and I want people who have that problem to find that post in the future. That is all.

So what do I do with it without increasing power of Medium overlords? Where do I just post a blog post?