Venugopal

This plugin restricted the seleted menu so anonymous user won’t access this menu item links directly
More WordPress help please follow Me on this link 
<a href="https://venugopalphp.wordpress.com/" rel="nofollow ugc">Venugopal</a>

Menu Restrict for Anonymous users

This plugin restricted the seleted menu so anonymous user won't access this menu item links directly

Marco Milesi

WP Guest Bar displays a customizable WordPress admin bar for non-logged-in users.
Inspired by BuddyPress, it provides quick links (e.g., Log In and Register) for guests, improving user engagement and site navigation.
<h4>Features</h4>
<ul>
<li>Home icon with site name and link (mobile-friendly)</li>
<li>Login link with icon (mobile-friendly)</li>
<li>Register link (if enabled)</li>
<li>Customizable message area for guests</li>
<li>WPML compatible and fully translatable</li>
<li>Lightweight and performance-optimized</li>
</ul>
Demo: <a href="http://wpgov.it" rel="nofollow ugc">wpgov.it</a>
Perfect for BBPress forums or any site looking to encourage user registration and interaction.

WP Guest Bar

Add a customizable guest bar to your WordPress site.

Menu Restrict for Anonymous users vs WP Guest Bar