The best options for shade will be located near the west corner of the stadium, with the best protection from the sun coming in the 200 level club sections (246-253). These sections see more shadow cast from the upper level of the stadium above.

West side of Sun Life Stadium
The west end of Sun Life Stadium will have the sun set behind it and features some seats shaded by the overhang

The last rows in Sections 145 to 154 will also have good shade on the lower seating tier, but the closer rows to the field will see more sun. And while the upper level sections in the west corner will have the sun at the back sooner than other upper level sections, there is not much shade found on the highest seating tier at Sun Life Stadium.