Pichon app for windows is a free desktop application developed by icons8.com support thousands of different icons with different formats. You can easily search ICON by using any keyword, then just drag and drop into your Folder.

You can easily find over 120,000 icons in a free app, you can download Pichon for Windows
After you finish installing app, you can easily change color or size of icons, then save it or drag and drop into your folder.