The best Grand Canyon south rim viewpoints are probably
Yavapai and
Yaki in the main area around the US 180 road junction,
Pima and
Hopi along Hermits Rest Road,
Grandview,
Moran and
Desert View along the the East Rim Drive,
Zuni and
Papago for more peaceful views requiring a little hiking, or
Yuma and
Comanche for even more remote locations, reached by an all-day hike.