Here is how you would attach a menu-link. Add a file to your module:

  title: 'MyModule Settings'
  route_name: my_module.admin_settings_form
  description: 'Custom settings'
  parent: system.admin
  weight: 99

Make sure you clear cache. 

Want to know the route of the page you would like to send the link to? Check: Get route of a views page with drupal console

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