Name 3 players, in 1,2,3 order, and whoever is on the pitch takes it. If they miss, they miss, but make them practice at least 10 apiece the day before a game, or even at the end of every session.
I’ve said it before...
192sq ft of goal and a maximum of 16sq ft of goalkeeper (with arms raised).
Do the maths! You have 91.7% of the goal to aim at without even trying to send him the wrong way! Just don’t psych yourself out, hit it with decent power and don’t try to be balls on accurate in the corners, as your margin for error decreases rapidly!
If you split the goal into 1/6ths, with two rows of 4’x 8’ rectangles, almost anywhere in the top 3 rectangles scores PLUS at least one of the bottom side rectangles scores if the keeper goes the wrong way. Throw in that the keeper can only cover HALF of the remaining two rectangles, and it’s statistically harder NOT to score if you keep the ball inside the goalposts and hit it with any reasonable amount of power.
And, even if the keeper guesses correctly and you put the ball anywhere on the edge of the 16sq ft he can cover, unless he gets the 2sq ft of slightly separated hands on the ball, there’s a very good chance the ball will still go in off his body!!
So, simply address the ball, pick a side and try to choose the upper rectangle, hit the ball with a modicum of power and you are almost certain to score. If you do that and the keeper saves it, then “Bravo, Keeper!” but don’t act like you missed the penalty, and never take one again!
The probable reason Ederson is so good at them is he picks a location, hits them hard, and doesn’t give a fuck! That’s all it takes!