Automatic Thumbnail

I was wondering if there is a way or some other plugin that causes you to automatically select the thumbnail of the article rather than selecting an image every time you add a snipper as a recipe.

Provided wanted to get the doubt, snippers of articles also show the thubnail on google or just recipes? Which others show the thumbnail?

You should have how to get article data automatically to create the snippers based on categories like title, description, author, and so on. It will be a bore to do manually in more than 2000 articles.