Sirius Pro

Simply exclude all author posts from indexing it in SERPs. This plugin allows you to noindex posts for certain authors without modifying the code and it works with most of the available themes. Just install and activate this plugin to add noindex and nofollow meta for all author posts.
Read more about this plugin on <a href="https://siriuspro.pl" rel="nofollow ugc">WordPress</a> blog.

Noindex Author

Simply exclude all author posts from indexing it in SERPs.

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When it comes to Blogging and online publishing, WordPress CMS is the go-to choice for individuals and large multi-authors publications. While managing your website, It would be hard for you to maintain and manage multiple contributors working on the same article. “Post Co-Authors” Plugin will help you to add multiple authors within same post, which makes the Job lots easier for you to track.
Add writers as bylines without creating WordPress user accounts. Simply create a user profile for the writer and assign the byline as you normally would.

Post Co-Authors

Post Co-Authors plugin allows you to select more then one authors in any post or custom post type.

Noindex Author vs Post Co-Authors