Nothing fancy and no more than 5 minutes in length. Infielder: 20-25 swings in the batting cage from different angles. If you have the ability to show exit velocity, include that. Coaches want to see your set up, your athleticism, your swing path, etc. Then defensive work showcasing balls to your left and right and right at you, as well as a slow roller or two. Try to show your arm strength as well.
Outfielders defense should do their best to show arm strength. This is best done by placing the camera behind, say 3B, and have the player throw it to third.
Pitcher….a bullpen, not a game tape. 25 pitches. 15 from behind so coaches can see movement and shape of pitches and from the glove side for another view of your mechanics. If you can include radar gun readings that would be good.
Remember, coaches WILL NOT recruit a player solely from a video. Your video is used to pique their interest.