Co-Author Plus

WPSSO Core Pro will extend the list of Contact Info under the Guest Author profile page, and include co-authors and guest authors (name, description / bio, image, and all contact URLs) in post / page meta tags. The WPSSO Schema JSON-LD Markup add-on can also add co-authors and guest authors to all Schema types that include author markup (Article, NewsArticle, TechArticle, BlogPosting, WebPage, etc.).

WPSSO Core Pro Example Guest Authors Page

WPSSO Core Pro includes additional contact methods on the Guest Author editing page, along with adding a Social and Search Optimization metabox to customize the default social values (descriptions, images, etc.).

WPSSO Core Pro Example Meta Tags

WPSSO JSON Pro Example Markup

The use of HTML meta tags for Schema markup is a bit limited — to include additional information about the post and its authors, you can use the WPSSO Schema JSON-LD Markup Pro add-on.