Add an "Icon Module" using the most popular Icon Libraries like: "Iconic", "Font Awesome", etc.
If SVG is an option, it would be great to use also own libraries up to individual svg (like this wish: https://uxthemes.canny.io/flatsome/p/basic-svg-support-like-icon-box). So if you have a small page you don’t need the whole load of a (or more) complete lib., instead you can upload your optimized svg-/icon-collection.
A great solution would be a mix of (modern) custom use and available libraries for quick usage.
What do you think?
A better option would be great to have integration with this Plugin (IconPress Pro - Icon Management for WordPress)which include over 100.000 SVG Icons: https://codecanyon.net/item/iconpress-icon-management-for-wordpress/22369178
This plugin already integrates with: Elementor, WPBakery, BeaverBuilder and Gutenberg.