Get the login-times of users (no plugin required).

get-user-logins.sql

/* 
 * Get last login time of WordPress users.
 * WordPress stores the last time a user logged in in a serialized array in the usermeta - table.
 * Your prefix might be different (xyz_usermeta instead of wp_usermeta).
 * @see https://shocksolution.com/2019/04/16/find-last-login-time-for-wordpress-users-in-the-sql-database/
 */
select
  wu.user_login,
  metatable.*,
  FROM_UNIXTIME(metatable.login_time)
from
  (
    select
      user_id,
      REGEXP_REPLACE(
        meta_value,
        '.*((?<=login";i:)([0-9]*)|:).*',
        '\\2'
      ) as login_time -- extract 'login' from serialized array (if exists)
    from wp_usermeta
    where meta_key = 'session_tokens' -- session_tokens is a serialized array.
  ) metatable -- subquery, so we can use the extractet login_time.
  left join wp_users as wu on wu.ID = metatable.user_id
where metatable.login_time > 0 -- only users with a login time
ORDER BY metatable.login_time ASC;