In practice, it is not necessary to copy animation, and many action movies are also done by sketching. Use screenshot software to cut off animations or movies one by one and draw them.
I know animated short films with good action: there are three animated short films and rabbit series (where rabbits run, etc.) ), as well as some American animated films, such as Kung Fu Panda and Superman Commandos.
There are too many movies, such as Jackie Chan, Donnie Yen, Jet Li and other action stars, which are very good.
Don't just ask for some big moves. After all, in an animation, there are not many big moves, many of which are subtle. For example, the way a person speaks, and so on. European and American animation is good. Everyone will show different personalities when they speak. You will eventually learn to perform copying movements. You can practice acting in front of the mirror before painting.