There is another thread for this, but I will have to put it as Lugar do Corgo, it is a bit special.
Also if you are looking to have a quieter and comfortable place to stay then try Briallos 5km before Caldas de Rei, one guide says there are no shops in the local vicinity, but there are details on a notice in the albergue of one no more than 200 meters away, it is open 9am to 9pm monday to saturdays and sundays and holidays 10am to 1pm.