You can create your own fact checking web site for WordPress using this plugin. This Fact Check plugin makes that easy to do with WordPress, by creating a custom post type that includes all the data fields that you will need, and automatically generating the structured data that Google requires. If you have a web page that reviews a claim made by others, you can include a ClaimReview structured data element on your web page. This element enables Google Search results to show a summarized version of your fact check when your page appears in search results for that claim.