hook_menu_local_tasks_alter(&$data, $route_name) Alter local tasks displayed on the page before they are
hook_menu_links_discovered_alter(&$links) Alters all the menu links discovered by the menu link plugin
hook_link_alter(&$variables) Alter the parameters for links. Parameters
hook_local_tasks_alter(&$local_tasks) Alter local tasks plugins. Parameters
hook_contextual_links_alter(array &$links, $group, array $route_parameters) Alter contextual links before
Define the navigation menus, local actions and tasks, and contextual links. Overview and terminology The menu
hook_system_breadcrumb_alter(\Drupal\Core\Breadcrumb\Breadcrumb &$breadcrumb, \Drupal\Core\Routing\RouteMatchInterface $route_match, array $context)
hook_menu_local_actions_alter(&$local_actions) Alter local actions plugins.