Crumbles - Crumbles are like reaction GIFs with a way bigger vocabulary
PaintBerri - PaintBerri is a free art site that offers an awesome oekaki community.
Rif - Product Hunt for reaction GIFs
slimanimation - to make stick figure or hand drawn animations
Mematic - Mematic – Make Your Own Meme is another free to use meme generator application developed and published by Trilliarden.
FurAffinity - Fur Affinity, the internet's largest online furry art community.