1. Solar Icons

https://icon-sets.iconify.design/solar/

                        
// ----------------------------------------------------
// File: packages/demos/src/main/partials/scripts.html
// ----------------------------------------------------  

<script src="@@webRoot/node_modules/iconify-icon/dist/iconify-icon.min.js"></script>


// ----------------------------------------------------------------------
// usage
// ----------------------------------------------------------------------
<div class="list-group-horizontal">
  <iconify-icon icon="solar:smile-circle-linear" class="text-2xl"></iconify-icon>
  <iconify-icon icon="solar:smile-circle-linear" class="text-2xl"></iconify-icon>
  <iconify-icon icon="solar:smile-circle-linear" class="text-2xl"></iconify-icon>
  <iconify-icon icon="solar:smile-circle-linear" class="text-2xl"></iconify-icon>
  <iconify-icon icon="solar:smile-circle-linear" class="text-2xl"></iconify-icon>
</div>

                        
                    

2. Tabler Icons

https://tabler-icons.io/

                        
// ----------------------------------------------------
// File: package/scss/style.scss
// ----------------------------------------------------  

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@tabler/icons-webfont@2.44.0/tabler-icons.min.css">


// ----------------------------------------------------------------------
// usage
// ----------------------------------------------------------------------
<div class="list-group-horizontal">
  <i class="ti ti-mood-happy text-dark text-xl"></i>
  <i; class="ti ti-mood-happy text-dark text-2xl"></i>
  <i class="ti ti-mood-happy text-dark text-3xl"></i>
  <i class="ti ti-mood-happy text-dark text-4xl"></i>
  <i class="ti ti-mood-happy text-dark text-5xl"></i>
</div>