simonwood

This plugin adds an option to override this behaviour, so that the theme will behave either as a single author blog (even where there are multiple authors) or as a multi-author blog (even where there is only one author).

Multi-Author Override

This plugin adds an option to override this behaviour, so that the theme will behave either as a single author blog (even where there are multiple aut …

flocsy

Authors Widget shows the list or cloud of the authors, with the number of posts, link to RSS feed next to their name, avatar. It is useful in a multi-author blog, where you want to have the list in the sidemenu. 
The widget can also display an “Author Cloud” if <a href="https://wordpress.org/extend/plugins/seo-tag-cloud/" rel="ugc">SEO Tag Cloud plugin</a> is installed.

Authors Widget

Authors Widget shows the list or cloud of the authors in the sidemenu.

Multi-Author Override vs Authors Widget