Lots of popular SVG Icons available
Finding good website icons can be hard. You want good icons for social media and other objects. You also don't want to spend a ton of money on something that you're just going to use for one time.
VisualPharm, part of the icon8 family, is here to help. They have a huge collection of icons available for free. These icons are in SVG format, which basically means that they will scale very nicely no matter how small or large that you make them.
The only requirement they have is to put a link someplace on the page back to icon8.