Just google dribbling drills.
Two ball drills and tennis ball drills especially will help with coordination.
Always keep your eyes up. Make sure you practice going downhill with the ball; there's plenty of guys with flashy handles that can't do anything with it.
Just comes down to practice and dedication, man.
Thought I'd add some more since I am avoiding work.
On crossovers: The ridiculous Iverson crossover is overrated. Not many people are good enough to do it well. Literally just practice keeping the ball low and then turning so you can protect the ball with your body.
- Other thoughts.. Always use an arm to shield the ball. It's an underrated way to help yourself. I've seen very flashy, coordinated dribblers get eaten alive because the don't use their forearm (shielding not pushing) to defend the ball.
- Assuming that you want this to have game-time pragmatism, then I'd work on basics first. Using the forearm, Reverse and fake-reverse dribbles (look up videos on this)
As far as coordination goes. Other than just getting a ball in your hand and practicing that left-right between the legs.
-Practice behind the back, especially after you've tried to drive but need to back out. Make sure the dribble is tight and low. The goal should be below and in between your knees is what I tell my players.
- Between both legs at your level is honestly probably more for show than for any game-day use.
Tips for drills and games:
-POUND the basketball into the ground on all of these. Chris Paul always said the ball should fly in the air if you miss the handle. It HAS to be fast and hard.
- Use the tips of your fingers and straighten your arm as your dribble to give you power
- eyes up ALWAYS.
- The point of a dribble is to create space and drive... well on that drive the LOW MAN wins. You need to take a long, long, LONG, first step. Runners lunge kind of long. It will help you get by defenders. Watch Lebron, when he drives, he is still lower than any person guarding him when he's on fire, despite his height.
- Use your body to guard the ball. Isaiah Thomas is an animal at this. He gets by someone and uses his butt to keep them on his side or back so he can look for open guys or shots.
Drills:
- One ball figure 8s both directions
- One ball by ankles/knees/shoulders.
- One ball windshield wipers (side to side in front of your foot)
- One ball paintbrush (up and down to your side)
- Two balls bouncing same time. stationary and on the run
- Two balls opposite. stationary and on the run
- Two balls one ball dribble low and fast, one dribble high by your shoulder
- One ball/one tennis ball (look up drills)... I suggest starting by just dribbling basketball and throwing and snatching with the other hand (palm down... not a catch... snatch). This is good to train you to keep that shield arm out. Steph Curry does great stuff with this.
-One ball/one tennis ball crossover... toss in the air.
- One ball/one tennis ball between the legs.. toss in the air
- One ball/one tennis ball behind the back..toss in the air
- One ball/one tennis ball... each of the four above except... Instead of tossing in the air and snatching, you bounce it against the wall and snatch it.
- Reverse dribble and fake-reverse dribble (aka spin dribble)
- There's more but I'll stop.. Haha
My teams do most of these drills every practice. 10 mins a day will make you a much better player if you're dedicated and deliberate.