poxrud

This plugin generates Structured Data Schema in JSON-LD format. This could potentially improve your site’s visibility and SEO.
To learn more about Structured Data and Schema please visit Google’s <a href="https://developers.google.com/search/docs/guides/intro-structured-data" rel="nofollow ugc">Introduction to Structured Data</a>.
Make sure to test your website’s structured data using the <a href="https://search.google.com/structured-data/testing-tool" rel="nofollow ugc">Structured Data Testing tool</a>.
While there are hundreds of differet Schema types this plugin’s focus is on those types that releate to Product based businesses.
Currently as of version 1.0.0 the plugin supports the following Schema types:
<ul>
<li><a href="http://schema.org/WebSite" rel="nofollow ugc">WebSite</a></li>
<li><a href="https://developers.google.com/search/docs/data-types/corporate-contacts" rel="nofollow ugc">Organization</a></li>
<li><a href="https://developers.google.com/search/docs/data-types/products" rel="nofollow ugc">Products</a></li>
<li>New types will be added in future versions.</li>
</ul>
NOTICE: This plugin is offered free of charge. It has been written by <a href="https://www.twitter.com/poxrud" rel="nofollow ugc">Phil Oxrud</a>.
<h4>Features</h4>
<ul>
<li>Specifically Tailored for Google’s structured data schema</li>
<li>WebSite Schema</li>
<li>Organization Schema</li>
<li>Indicate multiple contact phone numbers using schema</li>
<li>Indicate multiple social media accounts using schema (twitter, facebook, and youtube)</li>
<li>Supports Products Schema</li>
<li>Generate defaults or customize the schema of every individual product.</li>
</ul>

Business Schema JSON-LD

Generate Structured Data in JSON-LD format for Product based businesses. Supports popular schema.org types that would be commonly used by a typical bu …

andreif13

WebPage Schema Plugin allows you to use your custom full-featured schema. 
Schema (JSON-LD) is the most important factor in search engine optimization. 
Build your custom schema for each page/post you publish in your website: 
– Schema documentation https://schema.org/ or https://www.w3.org/TR/json-ld11/ 
– Advanced SEO documentation https://developers.google.com/search/docs/advanced/structured-data/intro-structured-data 
– Schema.org Validator https://validator.schema.org/ 
– Google Rich Validator Tool (Rich Results Test) https://search.google.com/test/rich-results/result
Notes: 
– Disable schema feature from the SEO plugin that you currently use. 
– Do not minify the code, plugins like autoptimize will do that job for the entire page.

WebPage Custom Schema (Schema.org JSON-LD)

WebPage Schema Plugin allows you to use your custom full-featured schema. Schema (JSON-LD) is the most important factor in search engine optimization.

Business Schema JSON-LD vs WebPage Custom Schema (Schema.org JSON-LD)