Mookie for the long-term by moving him to second base (and play SS and RF in a pinch). They can get Teoscar for 1/8 of the price of Soto and 10 fewer years and he's really good - not all-time Hall of Fame good but very good and already a great fit. They could put Teoscar in right and maybe have one of their top prospects, Dalton Rushing play left field.
I suspect they have other priorities as well like resigning Buehler, Kike, and Treinen and probably try to get Roki Sasaki.
Lux might be the odd man out and get traded - or they might try him at short one more time and put Edman in center.