jomol

Simple Font Awesome Icon plugin will give you the Font Awesome Icon option in your post and page. From there you can choose the required icon and hit save. Then use the get_post_meta(‘post ID’, ‘font-awesome-icon’, true); function in the template file and you will get the class name which can be used with i tag.
Please take a look the plugin page for more details: [https://codingdom.wordpress.com/simple-font-awesome-icon/)

Simple Font Awesome Icon

Simple Font Awesome plugin will give you the option for adding Font Awesome icons for your post and pages in the form of a meta box.

Smartpixels

Arul

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If you have a moment, please do leave a review to the plugin.We need your support and motivation to keep developing awesome plugins for you.
</blockquote>
<a href="http://www.smartpixels.net/?post_type=products&p=499" rel="nofollow ugc">Smart Icons For WordPress</a> plugin brings to you 519 icons from Font Awesome. Users can include these icons to posts, pages or custom post types with just a click of a button above wordPress editor (works with tinymce 4).
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Easy to use, no fuzz UI
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Custom shortcode, the default shortcode is [smarticon] but you can customise it to your own [icon] [fonticon] etc.
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Options to load fonts from CDN
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CSS effects like radius and shadow to customize the icons.
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Supports for last two versions of all the major browsers
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4K display friendly
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Scalable icons that looks great on any screen size.
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Doesn’t dependent on TinyMCE 4 editor API, use any editor of your choice.
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We also offer a professional version of the plugin that has exclusive features and option to add SVG icon packs.
Smart Icons For WordPress Professional
<iframe loading="lazy" title="Smarticons For WordPress" width="750" height="422" src="https://www.youtube.com/embed/qi8zBrzds3I?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
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PRO Features
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Includes support for import of icon packs from flaticon ( Choose icons packs from largest vector icon database ).
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Includes support for import of customised icon packs from icomoon ( Make your own icon packs from Over 450 handcrafted icons ).
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Proprietory code to handle icon delivery.
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Coloured icons, easily add colour to icons with inbuilt colour picker.
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Seamlessly change icon sizes
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Add animation to icons
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Mix colour, size and animation to create millions of unique icon combinations to keep customers engaged with your content.
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<iframe loading="lazy" title="Create visual content with Smarticons for WordPress" width="750" height="422" src="https://www.youtube.com/embed/NH_X75_T4Xk?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
For more information on usage and features, check out <a href="http://www.smartpixels.net/?post_type=products&p=499" rel="nofollow ugc">smartpixels</a>.

Smart Icons For WordPress

> If you have a moment, please do leave a review to the plugin.We need your support and motivation to keep developing awesome plugins for you.

Simple Font Awesome Icon vs Smart Icons For WordPress