WP Schema Pro - creating micro-markup is no longer a difficult task! With a simple interface and selection, you can set up your layouts in minutes.
Demo: https://wpschema.com
When you share Joomla links on Facebook and Twitter, those sites don't find the correct information unless you are using Shack Open Graph.
Demo: https://www.joomlashack.com/joomla-extensions/shack-open-graph/
Google Structured Data Pro is an SEO Joomla extension that allows digital marketers to adopt Google Structured Data and Rich Results - Cards without requiring them to be an expert in the Schema.org language or writing code.
Demo: https://www.tassos.gr/joomla-extensions/google-structured-data-markup