Use a Custom Page for Logging In
Sends visitors who open wp-login.php to your own login page (for example one with the login form shortcode), and back there when a login fails.
Snippet Library
Login snippets for WordPress
Snippets for the WordPress login page and the way people sign in: your logo and colors, a custom redirect after login, friendlier error messages and limits on who can get in. For anyone who wants a branded, safer login without another plugin.