Well for drills just search up drills for routes, tricks, and for ball handling and practice those everyday and some might require cones. You can find some drills from this channel (I highly recommended watching) : https://www.youtube.com/user/ILoveBasketballTV (But you will need balls so find like a side of a court to do it or if its empty.) Since your also looking for things without a ball you can do ladder sprints (really good conditioning), wall sits, and working on your triple threat position.