This is both an answer and a question. First what do you think makes him special one of a kind type of player.
My take is he makes incredibly difficult in your face shots look easy. He's an advanced shot Maker at the likes we don't see often at this age.
Kevin Durant was the last time I've seen a kid this good this Young with that type of size, albeit Durant is a solid 3" taller.
Tatum's midrange out to 18 feet is feathery soft, and this includes One legged fadeaways, step back, fadeaways, you name it he shoots it.
He's such an intelligent scorer it's Incredible. His combination of Size, length, and quickness is displayed frequently when driving to the rim.
He generally beats them with his Ball handling and quickness, feels the defender with his body and he's so long and he uses that length to extend and lay it in. His guy won't block him often on drives to the rim.
Heard a trainer that's worked with Jayson since around 15. He said the two things you should look for in His shot are 1, A wide base make sure he has his feet wide enough.
Two, he developed a bit of a bad habit of bringing the ball to far behind his head to avoid getting blocked when he was young.
He wants it further foward so he has a strong sight line with his eyes.