Coub - Coub is an app that features GIFs, but the GIFs that you select and send to other people have sounds.
Giphy - Search all the gifs and make your own animated gif
Tenor - More than 300M people use Tenor every month to communicate with an animated GIF that expresses...
Gfycat - Gfycat is gif hosting, with three unique advantages: Speed - Average is 8 times faster.
Gifyu - Upload GIF Images and Share Pictures Online
crazygif - Crazy and Funny Gifs from real events from life of people and animations.