According to the website, David Price, Nathan Eovaldi, Jackie Bradley Jr. and Marcus Walden have a combined negative trade value of $81.7 million. Mookie Betts' surplus value of $50 million still leaves a negative value of $31.7 million.
https://www.baseballtradevalues.com/trade-simulator/
A.J. Pollock, Joc Pederson and Kenley Jansen have a combined negative value of $33.5 million, according to that website. Gavin Lux has a surplus value of $88.5 million, Dustin May $61.4 million, Keibert Ruiz $50.6 million and Alex Verdugo $50.1 million.
Be realistic ... perhaps Mookie Betts for five years of 23-year-old outfielder Alex Verdugo would work.