Heroicons - Beautiful, free SVG icons from the makers of Tailwind CSS.
Buttons Generator - 100+ buttons you can use in your project
IconStore - Free icon packs by first-class designers
+500 Animated Icons by Lordicon - Animated lottie icons for unforgettable user experience
Fluent Icons by Icons8 - Colorful and stylish icons for your projects
bttn.css - Awesome buttons for awesome projects!