Paul Bearne

This plugin makes it easy to display lists of user avatars, grouped by user roles, on your (multiuser) site. It also allows you to insert single avatars for blog users or any email address into a post or page – great for displaying an image of someone you’re talking about.
It makes use of built-in WordPress (core) functions to retrieve user information and get avatars.
Integrates with: Gutenberg, BuddyPress, xprofile, Multisite, Wpmu, BBPress, co-authors.
Avatar lists can be inserted into your sidebar by adding a widget or into posts/pages by using a <a href="http://authoravatars.wordpress.com/documentation/authoravatars-shortcode/" rel="nofollow ugc">shortcode</a>. The plugin comes with a tinymce editor plugin which makes inserting shortcodes very easy.
This also provides Gutenberg Block for use with the Gutenberg editor. 
Please help with the plugin Translations at https://translate.wordpress.org/projects/wp-plugins/author-avatars.
Both the shortcode and widget and Gutenberg Block can be configured to:
<ul>
<li>Show a custom title (widget only)</li>
<li>Only show specific user groups and/or hide certain users</li>
<li>Limit the number of users shown</li>
<li>Change the sort order of users or show in random order</li>
<li>Adjust the size of user avatars</li>
<li>Optionally show a user’s name or biography</li>
<li>Show users from the current blog, all blogs or a selection of blogs (on WPMU/Multisite)</li>
<li>Group users by their blog (when showing from multiple blogs), and show the blog name above each grouping.</li>
<li>Support users from Co-Author Plus, Ultimate Member, BBpress and BuddyPress (xprofile)</li>
<li>Limit the number of avatars per page for large sets by adding a page_size to the shortcode e.g. “page_size=30” (shortcode only)</li>
</ul>
Additionally, single user avatars can be inserted using the <a href="http://authoravatars.wordpress.com/documentation/show_avatar-shortcode/" rel="nofollow ugc">show_avatar shortcode</a> and configured to:
<ul>
<li>Adjust the size of the user avatar.</li>
<li>Align the avatar left, centered or right. 
The Gutenberg Block support both single user avatars and role based selections of avatars</li>
</ul>
Please report bugs and provide feedback in the <a href="https://wordpress.org/tags/author-avatars?forum_id=10#postform" rel="ugc">wordpress support forum</a>.
Plugin support: In 2011, Ben stepped down as maintainer of the Plugin, handing over ownership to co-author Paul Bearne, who continues to provide support and drive the development of new features.

Author Avatars List/Block

Thank you!

Display lists of user avatars using widgets or shortcodes. With Gutenberg support.

Meks

Simple plugin which allows you to display author/user info inside WordPress widget. Smart feature of this plugin is user/author “auto detection” which means that it can optionally show author of current post on single post templates or on specific author archive.
<h3>Features</h3>
<ul>
<li>Flexible display options</li>
<li>Auto detect post author on single post and author templates</li>
<li>Custom avatar size</li>
<li>Link avatar image to author archive (optional)</li>
<li>Link user display name to author archive (optional)</li>
<li>Replace widget title with user display name (optional)</li>
</ul>
Smart Author Widget plugin is created by <a href="https://mekshq.com" rel="nofollow ugc">Meks</a>
<h3>Live example?</h3>
You can see Smart Author Widget live example on our <a href="https://mekshq.com/demo/typology" rel="nofollow ugc">Typology theme demo website</a>

Meks Smart Author Widget

Easily display your author/user profile info inside WordPress widget.

Author Avatars List/Block vs Meks Smart Author Widget