Woocommerce Muestra el archivo por categorías, cata categoría linkea a su categoría hija hasta llegar al producto.

archive-product.php

<?php

    $parentid = get_queried_object_id();

    $args = array(
		'parent'      => $parentid,
		'childless'   => false,
		'hide_empty'  => false,
		'orderby'     => 'count',
		//'child_of'  => 15,
		//'fields'    => 'all',
    );

    $terms = get_terms( 'product_cat', $args );

	//print_r($parentid);
	//print_r($terms);

    if ( $terms ) {

          foreach ( $terms as $term ) {

                ?>

                      <p>
                            <a href="<?php echo get_term_link( $term ); ?>" class="<?php echo $term->slug; ?>">
                                  <?php echo $term->name; ?> <?php echo $term->count; ?>
                            </a>
                      </p>

                      <?php $term_name = $term->name; ?>

                      <?php if( $term->count != 0 ) : ?>

                            <?php $args = array(
                                  'post_type'       => 'product',
                                  'category_name'   => $term_name,
                            );

                            $wp_query = new WP_Query( $args ); ?>



                      <?php endif; ?>

                <?php

          }

    }

    $with_children = get_term_children( $parentid, 'product_cat' );

    if( ! $with_children ) :

          if ( have_posts() ) : while( have_posts() ) : the_post();

                //the_title();

                $tags = get_the_terms( $post->ID, 'product_tag' );


                foreach ( $tags as $tag ) {

                      ?>

                            <a href="<?php the_permalink(); ?>">

                                  <?php echo $tag->name; ?>

                            </a>


                      <?php

                }

                //print_r($tags);

                echo '<br>';

          endwhile; else : if( !is_shop() ) : echo 'aún no hay productos'; endif; endif;

    endif;

?>