Anything that strikes your fancy using anything that strikes your fancy. Don't yourself to pens and pencils on paper; there are countless other things u can use, paints, pastels, and even meer unusual things like spaghetti, chocolate sauce, and salt.
Drawing from life is probably one of the best things u can do to practice drawing, but if cartoons of anime take your fancy, then of course that works too. <3
It sounds crazy but pencils. They are really interesting if u draw them in detail. Honestly though, I draw a lot of one direction cuz I love me. Ballerinas are really fun to draw to. Just dance in general
Anything, really. For me, I mostly love to draw Yoshi, Birdo, and any character from My Little Pony. Trixie was a little tough to draw, but took my time.
u could draw famous cartoons like mickey mouse, the avengers as cartoons, TV characters...etc. of u could draw the outside world like a lake, a tree, a caterpillar, and so on. Really whatever your hart-, hart desires.
Lord of The Rings + The Hobbit are my favoriete films I draw charecters from these and I have gotten. I also draw sonic charecters cause I am good at those! Draw what is in your heart. Art is the stored honey of the heart!