Shameless self promotion: IconSear.ch[1] - instant icon search of almost 100K icons[2] from over 100 sources[3] (including feather!), linked directly to the icon source. More source ideas welcome!
[1] https://iconsear.ch/search.html
[1] https://iconsear.ch/search.html
I'd consider making the search experience more like https://www.flaticon.com/. The drop-shadow boxes are too distracting. Adding consistent spacing will help too.
I love that it's easy to get to the source, but having a page in between would be nice to see other icons from the set and information about where the icon is from.
I like instant search better than suggestions/autocomplete. It also works with JavaScript disabled though not instant.
For example if I search Facebook, I get dozens of icons. Now how do I find the same style of icons for Twitter, etc. If you can fix that, it'll truly make you awesome.