Walking Camino de Santiago Portuguese coastal route, we chose the way close to the sea and beach almost all stretches where it was possible (Litoral). We also chose to go the Vigo option, because we wanted to follow the coast as much as possible. There are also slightly fewer hikers. So it is on Variante Espiritual too, which was a good alternative.
As you will see, we were very lucky with the weather.
I have included two maps of the route we chose into the city of Vigo, since there is some discussion about what are the good alternatives into the city.