I think David Alcaide and Albin Ouschan are the most tactically savvy among the best players in the world. Alcaide shows it time and time again.
FSR's rise to stardom is the result of two things: He mastered the new MR break format first AND he absorbed all the tactical acumen of Alcaide by playing with him for years. He was superb in the Mosconi and won the Peri in Vietnam. He is back at the top of his game.
Shaw and Kaci, imo, have really elevated their strategic games in the past year or two. Kaci is very clever, and his severe arm injury last year has forced him to get even better at safety play. He can be surprisingly cautious and is willing to play cat and mouse.
Shaw wants to hit the ball, but he's learn that discretion is the better part of valor.
Krause, for his part, is better at safety play than it might seem. No surprise, really. He has been the main sparring partner for Neils Feijin for a few years now. Weird to see vids of him vs Feijin when he was still short and clean shaven.
Feijin has become a master of safety play after admitting it was his biggest weakness before he became a true star. He studied safeties and strategy extensively with Alex Lely.
I don't think young European players are all exceptional at strategy and safety play, however. Many of them are not. It was the biggest weakness in Filler's game even just two years ago.
Instead, they seemed to have developed a buddy system in which they learn that part of the game from better or older players. Or by losing to lesser but more strategically sound pros.
SVB and Gorst are very good safety players and both are also high-level strategists now. But I do think they can be a bit more careless or too bold at times. Gorst relies too much on his jump cue when the better choice is safety play.
Sky hasn't won the big one, and his defensive play is the reason why. Tyler is better at safeties. If he ever puts his whole game together ... who knows.