linewbie

WP Post Icon is a Free and Open Source WordPress plugin which is enable blog authors to upload and automatically insert topic icons or images in to your posts on the fly. You can control the position of the icon. Just select which image to display when you are writing a post, it will be automatically displayed.
<a href="http://www.linewbie.com/attach-diy/files/wp-post-icon.zip" rel="nofollow ugc">Download now!</a>
Features:
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<li>Automatically insert your topic icons in to your blog posts.</li>
<li>Very little manual work is required, just select which image to display when you are writing a new post.</li>
<li>
You could also use no image at all.
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<li>
<a href="http://www.linewbie.com/sf-forum?forum=8&page=1" rel="nofollow ugc">Support</a>
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<li><a href="http://www.linewbie.com/2008/02/wp-post-icon.html" rel="nofollow ugc">Version History</a></li>
<li><a href="https://wordpress.org/extend/plugins/wp-post-icon/faq/" rel="ugc">FAQ</a></li>
<li><a href="https://wordpress.org/extend/plugins/wp-post-icon/installation/" rel="ugc">Installation</a></li>
</ul>

WP Post Icon

Enables blogs authors to upload and select topic icons or images and have it automatically show up in their blog post.

Stylemix

gdprcompliancewp

Allows users to integrate their own custom icons into Elementor’s native icon controls and elements. This eliminates the need for FontAwesome, offering enhanced branding possibilities through personalized icon sets on websites. Exclusively utilizes Fontello’s complimentary icon font service for this functionality.
<h3>Main Features of the Icons for Elementor plugin:</h3>
<ul>
<li>Fully compatible with Elementor Page Builder.</li>
<li>Fully compatible with WPBakery Page Builder.</li>
<li>Allows the addition of unlimited icons to your website.</li>
<li>Supports IcoMoon.</li>
<li>Enables the addition of custom icons anywhere on your website.</li>
</ul>

Custom Icons for Elementor and WPBakery

Works perfectly

Incorporate your own custom icon fonts into Elementor's integrated icon controls.

WP Post Icon vs Custom Icons for Elementor and WPBakery