TF Structured Data
Joomla plugin to add structured data (rich snippets) to content items using custom fields. You can use this plugin to add Article, NewsArticle, BlogPosting, Book, Course, Event, FAQPage, Movie, Product, Recipe (and Guided Recipe), Special Announcement and Video schema markup using JSON-LD.
You can also use combination of these for different Joomla categories. The new version also supports structured data for COVID-19 announcements.