Robert DeVore

This plugin will automatically update the rel tags for links with specific domains in the classic editor content, and the new core block editor.
The Link Attributes for Publishers plugin is designed to assist content authors in complying with Google’s suggestions regarding proper tagging of sponsored and user-generated content (UGC) links. This plugin simplifies the process of adding rel tags for sponsored, ugc, and nofollow links to ensure your website meets Google’s specifications for link attribution.
<h3>Who is this for?</h3>
This plugin is particularly useful for:
<ul>
<li>Content Authors: Easily add <code>rel</code> tags to links without the need for manual coding.</li>
<li>Publishers: Ensure all sponsored and user-generated content links are properly tagged for compliance.</li>
</ul>
Let’s say you want to mark all amzn.to links as <code>sponsored</code> because they’re all affiliate links. This plugin helps you do that automatically to all content, old and new.
<h3>Features</h3>
<ul>
<li>Automatically sets <code>rel</code> tags for sponsored, ugc, and nofollow links.</li>
<li>Allows users to specify domain names for automatic <code>rel</code> tag addition.</li>
<li>Simplifies compliance with Google’s specifications about link attributes.</li>
</ul>

Link Attributes for Publishers

Automatically add sponsored, ugc and nofollow rel tags to specific URL's in your content

Web Guy

Companion plugin for the <a href="https://wordpress.org/themes/publishers/" rel="ugc">Publishers theme</a>.
Includes: shortcodes, profile and post editor enhancements, membership control, and other features for improved editing and management of multi-author teams.
Note: There are some cool features here that will work in other themes too, but they’ve been designed specially for the Publishers theme.
Features:
<ul>
<li>Add SEO, social media, and schema tags</li>
<li>If you would like to enable the dark mode feature, simply add a new menu item to any of your menus (and give it the class lights and <code>#</code> for the URL)</li>
<li>You can also add the dark/light mode switcher as a button anywhere you like and style it with <code><a href="#" class="button black">Lights</a></code></li>
<li>Use the shortcode <code>[non-member]...[/non-member]</code> to show content to logged-out visitors only</li>
<li>Use the shortcode <code>[member]...[/member]</code> to show content to logged-in members only</li>
<li>Use the shortcode <code>[access capability="read"]...[/access]</code> to show content to users with <a href="https://wordpress.org/support/article/roles-and-capabilities/" rel="ugc">specific capabilities</a></li>
<li>Use the shortcode <code>[share]</code> to add share buttons to posts</li>
<li>You’ll find new optional profile fields: Public Email, Facebook, Twitter, Instagram, Pinterest, YouTube, and Twitch</li>
<li>Add a body class for the logged-in user role</li>
<li>Improved post editor tools/buttons</li>
<li>Add subtitles/sub-headers to posts</li>
<li>Feature posts on homepage</li>
<li>Show a link to editor notes and guidelines in the post editor</li>
<li>Uploaded images automatically have titles and alts generated</li>
<li>Stop contributors from being able to delete files</li>
<li>Receive an email for guest post submissions, and guests receive a follow-up email based on whether you published or deleted their submission</li>
<li>Uncluttered admin and post editor screens for authors</li>
<li>The /author/ slug in URLs is rewritten to /writer/</li>
<li>New users are automatically logged in when they register</li>
<li>Improved images handling: unnecessary files sizes aren’t generated, thumbnails are generated for RSS feeds</li>
<li>Users are sortable by registration date</li>
<li>Records user IPs to assist with anti-spam measures and security whitelisting</li>
<li>More to come…</li>
</ul>

Publishers

Companion plugin for the Publishers theme: https://wordpress.org/themes/publishers/.

Link Attributes for Publishers vs Publishers