pluspt2001

New Page Link plugin makes all your hyperlinks in your body area to open in new tabs. Also you can add rel=”nofollow” to selective ahrefs with a specific class name. You can mark external hyperlinks as rel=”nofollow” as they might be having a nagative impact on your site SEO. Google crawlers don’t crawl or rate the links that are marked as nofollow.
Installation Guide
<iframe loading="lazy" class="youtube-player" width="640" height="360" src="https://www.youtube.com/embed/K2LKYS6CL7w?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation"></iframe>
Major features of New Page Link include:
<ul>
<li>Changing the behaviour of link or links to open in new tabs or in the same window on clicking</li>
<li>An options page to control open link in new page functionality</li>
</ul>
Below are the steps to install New Page Link plugin
<ol>
<li>Upload plugin to the <code>/wp-content/plugins/</code> directory</li>
<li>Activate the plugin through the ‘Plugins’ menu in WordPress</li>
<li>Go to the settings menu in the dashboard and then look for new link menu in it (settings/newlink).</li>
<li>Click on new link menu </li>
<li>Type the value ‘Yes’ to make links in body of your pages to open in new window</li>
<li>Type ‘No’ or anything else to keep them opening in the same window</li>
<li>Also you can add classes in another textbox of the hyperlinks that you don’t want google to include in your seo or impact your seo. So simply write class name followed by semicolon. There is no limit to how much class names you can add.</li>
<li>And you are done !</li>
</ol>
Screenshots
Click screenshot tab to see the options area under settings and then clicking on newlink option. There you have to type Yes to make it open everything in body of the page to open in new tab. Change it to No or anything else to open links in the same window.

New Page Link

New Page Link plugin converts all your external or internal links in the body to always open in a new tab. Also you can add rel="nofollow" t …

Erin McIntyre

This plugin searches links on your site for the domain that you specify in the settings, adds your affiliate ID, and makes those links open in a new tab when clicked.
The plugin produces XHTML Strict compliant code and is search engine optimized (SEO). 
This is done using JavaScript’s <code>window.open()</code>-function. It adds only a few lines of vanilla JavaScript to the page, and does not require any external libraries like jQuery.
Most other plugins perform a hack by altering the <code>target</code> parameter (i.e. <code><a href="http://somewhere.example" target="_blank"></code>). That method is not XHTML Strict compliant.
This plugin handles the links client-side, which lets search engines follow the links properly. Also, if a browser does not support JavaScript, the plugin is simply inactive, and does not result in any errors.
Credits 
Inspired by the <a href="https://wordpress.org/plugins/open-external-links-in-a-new-window/" rel="ugc">External Links in New Window / New Tab</a> plugin.
Known bugs 
The plugin conflicts with other plugins that change the links’ `onClick´ attribute.

New Page Link vs Affiliatize Me