If I had to pick just one breakout player for the 2016 season, Maikel Franco would be hands down my number one pick every time.
He may find himself not being very selective, but he makes up for it, and then some with his power. He had 14 homers and knocked in 50 runs in 80 games last season before it was cut short due to a non-displaced wrist fracture. If you need proof that he can hit, then just take a look at his spring training stats; .302 BA, 8 HR, and 19 RBIs.
As with Sano, the one thing that could hurt Franco is the fact that Philadelphia has little to no offense which will make it easier for pitchers to avoid throwing to him.
Being on a team rebuilding, Franco should be a focal point of that core for years to come. Expect Franco to be a household name in the near future.