Looking for logging into the Wp User site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Wp User site. After that you can login as usual with your login credentials.
https://wpdocs.osdn.jp/%E9%96%A2%E6%95%B0%E3%83%AA%E3%83%95%E3%82%A1%E3%83%AC%E3%83%B3%E3%82%B9/is_user_logged_in
https://ja.wordpress.org/plugins/wp-user/
https://developer.wordpress.org/reference/functions/wp_login/
https://www.adminweb.jp/wordpress/user/index1.html
https://gatespace.jp/2014/12/09/wp-cli-wp-user/
https://www.wpbeginner.com/beginners-guide/how-to-find-your-wordpress-login-url/
https://www.wpbeginner.com/beginners-guide/how-to-allow-user-registration-on-your-wordpress-site/
https://www.wpbeginner.com/plugins/how-to-show-users-last-login-date-in-wordpress/
https://www.wpbeginner.com/plugins/how-to-create-custom-login-page-for-wordpress/
https://themegrill.com/blog/wordpress-user-registration-plugins/
https://premium.wpmudev.org/blog/find-wordpress-login/
https://codecanyon.net/item/userpro-user-profiles-with-social-login/5958681
https://wordpress.stackexchange.com/questions/53503/can-i-programmatically-login-a-user-without-a-password