I’ve been having some trouble creating interesting poses so I thought I would whip up a reference.
First Image - X (this website is really helpful, I recommend looking at it if you want to learn more)
Second Image - X
Third Image - X (has some helpful information)
Fourth Image - X
Another Helpful Website - X
Try drawing a simple curved line as your action line and then a draw pose around that line. Practicing this will help you get better at drawing interesting poses.
You can also go to posemaniacs and find a couple poses and figure out where the action line is for yourself as an exercise.