EUIKit utilizes Blade Icons under the hood to provide icons to things like headers, menu entries, buttons and tags. The Blade-Icons Laravel package makes it trivial to use multiple icon sets.

For example, you could load the package for Phosphor Icons with: composer require codeat3/blade-phosphor-icons:^2.0. Once added, the Phosphor Icon set is now available anywhere an icon can be used. For example, a call to a Sections header might look like:

<x-euikit::section>
    <x-slot:header lefticon="phosphor-car">
        Cars
    </x-slot:header>
</x-euikit::section>
        

And the proper icon will be loaded.

The Blade UI Kit Icons page has a comprehensive list of icon sets that can be used in this fashion.