WhizKins

WPSimpleInsert is a plugin to insert custom code in your blog posts. It includes options to either add the code above 
or below post content.
Features:
<ul>
<li>Add custom HTML/PHP/JavaScript to your posts.</li>
<li>Ability to add custom code above or below post content.</li>
<li>Options to hide the code from certain pages like the home page and category and archives pages.</li>
</ul>

WP Simple Insert

A plugin to insert custom HTML or PHP code in your posts. Includes options to insert before or after post content.

Fahad Murtaza

WP Help

CURRENTLY WORKING ONLY WITH CLASSIC EDITOR
This plugin adds additional functionality when you create a link in a blog post or pages. When you add a link, the link function will now include the following options:
<pre><code>1. rel="nofollow"
2. rel="sponsored"
3. rel="ugc"
</code></pre>
This makes it easier to comply with new Google SEO link standards.
The plugin’s main features are:
The ability to select: “nofollow”, “sponsored”, or “ugc” when creating a link 
The ability to select to open in a new tab or window

WP Better SEO Links

Adds a checkbox in the insert link popup box for including rel="nofollow", rel="sponsored", and rel="ugc" in links as yo …

WP Simple Insert vs WP Better SEO Links