Personally I like the Yee drill. And it is one of my DDs favorites as well.
Here is a Yee doing a drill, it's a good gif to look at. Many don't like the drill, but IMO doing it the way she is doing is not harmful.
Another gif I like for just the feel of the swing is this Jenny Finch. It is cut off, and gritty, but it has a good feel to it.
Yeah Howe, I am constantly telling girls to stay above the ball. She does it well.