Rick Hellewell

You can block ChatGPT and Bard and other compatible AI scanners from using your site content by adding specific commands to your site’s virtual robots.txt file. Note that an actual robots.txt file in your site root will override the virtual commands.
The plugin also adds your sitemap.xml file to the virtual robots.txt file.

ChatBot Blocker by CellarWeb

ChatBot Blocker by CellarWeb    adds commands to the WordPress virtual robots.txt file to block various chatbots from using your site content.

Eugen Bobrowski

Plugin provide to help search engines to indexing site correctly.
A simple plugin to manage your robots.txt. Plugin donn’t create the file or edit it. This plugin edit WordPress output of robots.txt content. And get you a easy and usable interface to manage it.
Features
<ul>
<li>Drag-n-drop robots.txt paths</li>
<li>Changing <code>blog_public</code> option form plugin settings page</li>
<li>Site map field for robots.txt</li>
<li>Robots.txt physical file checking.</li>
</ul>

Robots.txt rewrite

first review

Provide the easy managment of your robots.txt from admin side. It propose you the advanced then standard robots.txt content too.

ChatBot Blocker by CellarWeb vs Robots.txt rewrite