Add Custom Field To Genesis Loop https://wpsites.net/web-design/add-custom-field-to-genesis-loop/

archive.php

<?php
/**
 * @author  Brad Dalton
 * @link    https://wpsites.net/web-design/add-custom-field-to-genesis-loop/
 */

add_action( 'genesis_entry_content', 'function_name', 12 );
function function_name() {

    $value = get_post_meta( get_the_ID(), 'key', true );
    
    if ( ! empty( $value ) ) {
    
    echo '<div class="your-class">'. $value .'</div>';
    
    }
}

genesis();