I’ve tried the code below, and it pulls in my 5 most recents posts???
For this, I have a CPT of “Stories.” From “Posts” (standard WordPress posts) I select the Story I want to relate it to.
The code below is from my stories-single.php
<?php
$args = [
'post_type' => 'post',
'meta_query' => [
'key' => 'related_stories',
'value' => '"' . get_the_ID() . '"',
'compare' => 'LIKE',
]
];
$related_posts = get_posts($args);
?>
<ul>
<?php foreach($related_posts as $some_post):?>
<li>
<?php echo $some_post->post_title;?>
</li>
<?php endforeach; ?>
</ul>