You can display related post under archive pages. You must edit archive.php files on your current theme and paste the following PHP code inside the loop.
<?php echo do_shortcode( '[related_post post_id=""]' ); ?>Parameters
- post_id => Current Post id
- post_ids => Ex: 123,124
- headline => String
- view_type => grid, slider
Please see the screenshot of how it is done.
Same way, you can use the related post shortcode under category.php , tag.php, taxonomy.php