allilevine

This plugin adds an options page (Settings > Login Screen) that allows you to customize the WordPress Login Screen (wp-login.php). You can:
<ul>
<li>Upload a custom logo (it will be resized to fit if necessary)</li>
<li>Choose a link color</li>
<li>Choose a link rollover color (defaults to a darker shade of the link color)</li>
<li>Choose a button color (defaults to a button version of the link color)</li>
</ul>
The plugin also links the new logo to your site URL.

Simple Login Screen Customizer

Good

Choose a logo and link color for the login screen.  The plugin will do the rest.

wp-ave.com

Hides language switcher feature from login screens introduced in WordPress 5.9
Features:
<ul>
<li>Simply activate this plugin to hide language switcher feature from login screens introduced in WordPress 5.9</li>
</ul>

Hide Language Switcher

Hides language switcher feature from login screens introduced in WordPress 5.9

Simple Login Screen Customizer vs Hide Language Switcher