Priyanka Bhave

This plugin adds login/ logout link in the navigation menu according to the user login status and then redirect to page/link set by admin and on click of login link a popup will open.
Plugin features :
<ol>
<li>Add login/ logout link to the naviation menu.</li>
<li>On click of login link Create a popup to login to the site.</li>
<li>Create a setting page for the admin to set redirection link after loggin/ logout</li>
</ol>
Steps to set redirection link :
<ol>
<li>Open the dashboard.</li>
<li>Click on login/ logout link under the settings menu.</li>
<li>Select the page or enter link to redirect after login/ logout for admin or non-admin login/ logout.</li>
</ol>

WP login/out link with login popup

This plugin adds login/ logout link in the navigation menu accordinng to the user login status and then redirect to page/link set by admin.

prontotools

zkancs

Use a simple, single shortcode to allow your visitors to login or logout depending on their current status.
The shortcode outputs an a href link for you to add in the header, footer or anywhere else on your website.
Example Shortcode:
<pre><code>[login-logout text_to_login="Login" text_to_logout="Logout" class="custom-class" redirect="/shop/"]
</code></pre>
Available Parameters:
<ul>
<li>text_to_login – The text to prompt logged-out users to log in.</li>
<li>text_to_logout – The text to prompt logged-in users to log out.</li>
<li>class – Any optional custom classes to be added to the link.</li>
<li>redirect – An optional page to redirect to after logging in/out. If not included, users will redirect to whatever page they’re on when they click the link.</li>
<li>login_url – An optional parameter that user can change the URL login page</li>
</ul>

Login Logout Shortcode

A single shortcode you can place anywhere to allow visitors to login/logout.

WP login/out link with login popup vs Login Logout Shortcode