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.

Jason Coleman

Paid Memberships Pro

Jared Atchison

<h4>Add an avatar upload field on frontend pages and Edit Profile screen so users can add a custom profile picture.</h4>
Community and Membership sites on WordPress use this plugin as a lightweight solution for custom user avatars. The plugin is compatible with bbPress, as well as many popular plugins with frontend user registration and profile management features.
Admins can upload a user’s avatar on the Edit User admin screen.
Basic User Avatars also supports front-end avatar management for sites that want to keep users out of the dashboard. To use this feature, add the shortcode <code>[basic-user-avatars]</code> to any page in your WordPress site. We recommended placing this shortcode on another logged-in account type page, such as the WooCommerce My Account page, the Membership Account page, or any other front-end profile edit form.
The Avatar Upload form is automatically added to the bbPress User Profile > Edit frontend page.
If you do not want your users to be able to update their avatar, navigate to Settings > Discussion and locate the “Local Avatar Permissions” setting. Check this box to only allow users with file upload capabilities to upload local avatars (Author role and above).
<h4>Seamlessly Migrate from WP User Avatar Plugin</h4>
Version 1.0.5 includes a feature to automatically convert avatars formerly loaded through the WP User Avatar plugin. This means that you can disable WP User Avatar, activate Basic User Avatars, and have a seamless transition for existing avatars in your site. Be sure to update any avatar upload form that used the <code>[avatar_upload]</code> shortcode to use the shortcode: <code>[basic-user-avatars]</code>.

Basic User Avatars

it may have been around for a while but this plugin still works well

still works with WP4.9.1

Add an avatar upload field on frontend pages and Edit Profile screen so users can add a custom profile picture.

Author Avatars List/Block vs Basic User Avatars