Load more button wordpress posts page

Hello, I need to implement a load more to load more posts in a wordpress template, I've already tried several methods but none works correctly.

<section id="blog">
            <div class="content-box">
                <?php
                $paged = ( get_query_var('paged') ) ? get_query_var('paged') : 1;
                $args = array(
                'category_name' => '',
                'posts_per_page' => 1,
                'paged' => $paged
                 );
                $query = new WP_Query($args);

                if($query->have_posts()):
                    while($query->have_posts()):
                         $query->the_post();
                        get_template_part( 'template-parts/content', get_post_format());
                    endwhile;
                endif;
                ?>
            </div>

        </section><!--/#blog-->