I experimented with showing related posts under each article using shared tags.

Approach

My idea is intentionally simple:

  1. Compare tags of the current post with all others.
  2. Sort by number of matching tags.
  3. Display the top matches.

Benefit

Readers can continue exploring similar topics without going back to the index page.

What is next

I plan to refine the sorting rules so older but highly relevant posts still appear.