Andrei Zhitkov

Defining your default canonical arbitrary is most useful for those unfortunate souls who have their site URLs in punycode. This plugin allows setting a default custom URL to be used as canonical. It is designed to work with Yoast SEO only. The individual settings are still available and can be edited as before. Since it is dependent on presence of Yoast SEO, this plugin will not activate without it. 
The plugin does not add its own settings page, It uses WordPress Settings -> General. Look for it at the bottom of that page.
<h3>Technical Details</h3>
Supported versions: 
WordPress 4.x 
WordPress 5.x 
WordPress 6.x 
Yoast SEO 6.x-20.x

Custom canonical URL for Yoast SEO

This plugin allows setting a default custom URL to be used as canonical. It is designed to work with Yoast SEO only.

fred91

Simplicy SEO
Simplicy SEO will allow you to optimize your SEO for your WordPress blog plugin itself supports the following tags:

Home page, page, article
<ul>
<li>
Meta tag keywords
</li>
<li>
Meta Tag news_keywords
</li>
<li>
Tag title
</li>
<li>
Meta Robots Tag
</li>
<li>
Meta tag description
</li>
</ul>

category archives
<ul>
<li>
Meta tag keywords
</li>
<li>
Tag title
</li>
<li>
Meta Robots Tag
</li>
<li>
Meta tag description
</li>
</ul>

Keywords archives

<ul>
<li>
Meta tag keywords
</li>
<li>
Tag title
</li>
<li>
Meta Robots Tag
</li>
<li>
Meta tag description
</li>
</ul>

Advanced options

-Meta tag creation
<ul>
<li>
Meta Tag author
</li>
<li>
Meta Tag Contact
</li>
<li>
Meta Tag copyright
</li>
</ul>
Geotag meta tag

<ul>
<li>
Meta geo.region
</li>
<li>
Meta geo.placename
</li>
<li>
Meta geo.position
</li>
<li>
Meta ICBM
</li>
</ul>
Facebook Open Graph 

<ul>
<li>
Meta Tag property app_id
</li>
<li>
Meta Tag property admins
</li>
<li>
Meta Tag property og: url
</li>
<li>
Meta Tag property og: site_name
</li>
<li>
Meta Tag property og: description
</li>
<li>
Meta Tag property og: type
</li>
<li>
Meta Tag property og: image
</li>
</ul>

Articles & Pages

<ul>
<li>
Meta Tag property og: url
</li>
<li>
Meta Tag property og: title
</li>
<li>
Meta Tag property og: description
</li>
<li>
Meta Tag property og: type
</li>
<li>
Meta Tag property og: image 

</li>
</ul>
French language

Simplicy SEO

viewed Requires at least: 3.0 Tested up to: 3.7.0 Stable tag: 4.3 License: GPLv2 or later License URI: http://www.gnu.org/licenses/gpl-2.0.

Custom canonical URL for Yoast SEO vs Simplicy SEO