Fans of anime (and animation in general) should check this site out.
The site is in Japanese but there are a lot of English titles and subtitling.
The movies are collected into categories such as アクション
(Action), キャラクター(character), etc. and further broken down into subcategories (such as various animals, example: tori (bird), kuma (bear) etc.) under the character category):
Haven’t used Mischief in a very long time so cracked it open and doodled a little.
For those interested there are free and paid versions.
The primary difference (although there are others) is that the paid version has layers.
The main benefit to using Mischief? The infinite canvas.
Here’s their site: https://www.madewithmischief.com/
And here’s a Mishief doodle converted and colored in OpenToonz: