I want to add a new menu item by my plugin.I tried a lot but failed. What is the hook for creating a new items in the navbar menu?Please help.

function  add_new_item_in_nav_menu(){

     .....


   }

  action('init','add_new_item_in_nav_menu');

I know how to add the page by a hook

function add_page2(){
    global $user_ID;
    $new_page_title = 'abc';
    $new_page_content = 'abc';
    $new_page_template = ''; 
    $page_check = get_page_by_title($new_page_title);
    $new_page = array(
        'post_type' => 'page',
        'post_title' => $new_page_title,
        'post_content' => $new_page_content,
        'post_status' => 'publish',
        'post_author' => 1,
    );
    if(!isset($page_check->ID)){
        $new_page_id = wp_insert_post($new_page);
        if(!empty($new_page_template)){
            update_post_meta($new_page_id, '_wp_page_template', $new_page_template);
        }
    }

    $homeSet = get_page_by_title( 'Home' );
    update_option( 'page_on_front', $homeSet->ID );
    update_option( 'show_on_front', 'page' );




}
add_action( 'init', 'add_page2' );