The Wee Schema plugin creates a schema for the page in JSON-LD which makes it easier for Google to classify the page.
The plugin supports the following schemas:
Below is a a screenshot of Wee Schema Settings. You can set the default langauge and the size of the post summaries to be included im the schema.

The JSON-LD schema is written into the post header. It is not visible on the page but it can be read by Google. You can validate your schema is correct by entering the URL fo your page at https://validator.schema.org/