List related products in single prodcut pgae

related-products.php

<?php

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}
// exit form direct access

global $product;
if ( empty( $product ) || ! $product->exists() ) {
	return;
}
// check if product is exists

if ( ! $related = $product->get_related( $posts_per_page ) ) {
	return;
}
// check if related product/s is exists

// setup argumans and start the query
$args = apply_filters( 'woocommerce_related_products_args', array(
	'post_type'            => 'product',
	'ignore_sticky_posts'  => 1,
	'posts_per_page'       => $posts_per_page,
	'orderby'              => $orderby,
	'post__in'             => $related,
	'post__not_in'         => array( $product->id )
) );
$products                    = new WP_Query( $args );

if ( $products->have_posts() ) :

		woocommerce_product_loop_start();
	
			// start the loop
			while ( $products->have_posts() ) : $products->the_post();

				// show anything you want
				if (has_post_thumbnail() ){ the_post_thumbnail(); }
				the_title();
				// and much more...
			endwhile;
			// end of the loop
			
		woocommerce_product_loop_end();

endif;
wp_reset_postdata();
// reset query data