Giphy - Search all the gifs and make your own animated gif
GIFme - Search and send GIFs through your Mac menu bar
Buffer - Buffer makes it super easy to share any page you're reading. Keep your Buffer topped up and we automagically share them for you through the day.
Giffage - Create, edit, discover, and share GIFs from your keyboard
Crumbles - Crumbles are like reaction GIFs with a way bigger vocabulary
Gifox - Delightful GIF Recording and Sharing App for macOS