You can write a longform blog post and submit it to HN, I would read it. Ribbonfarm's "The Gervais Principle" (2009) [0] is a top example of a very long blog post split over multiple parts, yet insightful enough to be shared widely on HN and still provoke thought, long after a first read.

[0] https://www.ribbonfarm.com/2009/10/07/the-gervais-principle-...