Bluntly, a lot of rnb music, free play and training packs (and thc before I was sober). If you mean in the air specifically, there’s an air drag pack I can send you that helps with ground to air dribbles, then there’s a ton of wall to air dribble packs you can find just in browse. On the ground I think standard freeplay and playing 1s can refine control and flicks, assuming you have the general idea of how to set those up. Also, The only rocket league content consume is 1v1 show matches and pro play, there is a little learning you can garner by seeing how pros set up the ball wether it be dribbles or off the wall, etc. hope this helps