Unlock the Hidden Power of Schema Markup on Your WordPress Site – What You’re Missing Could Skyrocket Your SEO!
The paid version also includes a schema generator to help you choose the correct schema for each piece of content and a tool for importing schema markup from other websites so you can see how others are using structured data. However, the free version of Rank Math SEO can add a good range of schema markup to WordPress.
Rank Math SEO is an excellent option if you’re looking for a powerful SEO and schema plugin that’s easy to use.
Yoast SEO

Like Rank Manth SEO, Yoast SEO is an SEO plugin for WordPress that can add schema markup to your site. It’s also one of the most popular plugins on WordPress.com.