This is not a bad core of young and prime players:
(3 or more years of team control)
27 Bogaerts (opt out)
23 Devers
24 Verdugo
31 Sale
23 DHern
24 Houck
25 Dalbec
27 Pivetta
25 Cordero
Casas, Downs, Mata, Duran, Jimenez, Ward, Seabold, Ramirez, Song, Groome, Yorke, Lugo, Potts, Rosario, Jordan...