how to add related post in artikle

Hy , where I can put code related post like in this picture ??? I ‘ve prepared the code only put its course >>>>> http://prntscr.com/9fj1i7
Thanks

hi bos please come here 😀

any admin here

ok thanks gan

Now I am confused should be placed where my code , I use the default single post template boss

this is my code sirrr

<?php
if(has_post_thumbnail()) {
echo ‘<div class=”td-post-featured-image”><figure>’;
$post_thumbnail_id = get_post_thumbnail_id();
$post_thumbnail_url = wp_get_attachment_url( $post_thumbnail_id ); ?>
” alt=”<?php echo get_the_title(); ?>” class=”entry-thumb wp-post-image” src=”<?php echo $post_thumbnail_url; ?>” style=”width:100%; height:auto;”>
<?php echo ‘<figcaption class=”wp-caption-text”>’;
echo get_post(get_post_thumbnail_id())->post_excerpt;
echo ‘</figcaption></figure></div>’;
} else {}
?>

<?php
$where = 1;
$content = apply_filters(‘the_content’, get_the_content());
$content = explode(‘</p>’, $content);
for ($i = 0; $i <count($content); $i++) {
if ($i == $where) { ?>
<?php
$orig_post = $post;
global $post;
$tags = wp_get_post_tags($post->ID);

if ($tags) {
$tag_ids = array();
foreach($tags as $individual_tag) $tag_ids[] = $individual_tag->term_id;
$args=array(
‘tag__in’ => $tag_ids,
‘post__not_in’ => array($post->ID),
‘posts_per_page’=>3, // Number of related posts to display.
‘caller_get_posts’=>1
);

$my_query = new wp_query( $args );
if($my_query->have_posts()){
echo'<div style=”margin-left: 20px”>
<h6>Baca juga :</h6>
<ul style=”margin-left: 15px”> ‘;

while( $my_query->have_posts() ) {
$my_query->the_post();
?>

<?php }
echo ‘</div>’;
}
}
$post = $orig_post;
wp_reset_query();
?>
<?php
}
echo $content[$i] . ‘</p>’;
}
?>

oh no , than ????