Many good suggestions here for you to pluck form if you will.
IN GENERAL w/o personal knowledge:
1. Plyo ball passes/toss’s (variety) in most planes of motion (especially lateral)
2. Band work with exercises like wood chops (up, down, rotational & lateral)
*I make sure they have to move(not drag) their feet & ROTATE
3. Simple knee lifts in different planes of motion work well and put them where they should be starting with stabilization
These are very easy to transition to unstable surfaces if warranted. Keeping this post short as I’m sure you will get blasted w/much info on this.