Where does Wilmer Flores fit on the 2020 Giants roster?

Role #2: Platoon at first base
With all of the experience that Flores has at first base, and with him being a right-handed batter, he may make sense in a platoon with incumbent first baseman Brandon Belt.
As Alex Pavlovic of NBC Sports Bay Area notes, Flores has over 1,000 big league innings under his belt at first base.
He also fits great in a platoon role.
In 2019, Flores hit .337/.367/.615 and slugged seven of his nine home runs in 109 plate appearances against lefties.
Meanwhile, Belt hit just .211/.333/.331 with three home runs in 159 plate appearances against southpaws.
On its surface, those numbers definitely suggest that a platoon could be beneficial, or at least that it might be wise to give Belt a day off in favor of Flores when there is a tough lefty on the mound.
They could also keep Belt in the lineup and start him in left field where he has some experience if he and Flores are both hot at the same time. Regardless, expect to see a fair amount of Flores at first base during the upcoming season.