Perhaps consider Restaurante Albergue O Rueiro in Vilaserio, a little before O Cornado:
Phone:+34 981 893 561
Email:
contacto@restaurantealbergueorueiro.com
Website:
www.restaurantealbergueorueiro.com/
Their coordinates if you want to see their relative position on a map are 42.943465, -8.850004 (here that is on
Google Maps). It's approx 12.8 km / 8.0 mi from Negreira.
Alternatively, there is Albergue Casa Pepa in Santa Mariña:
Phone: +34 981 852 881
Mobile: +34 686 234 342
Email:
alberguecasapepa@yahoo.es
Website:
www.alberguecasapepa.es/
Coordinates: 42.956811, -8.918421
Google. That is another 7.9 km / 4.9 m of walking.
And nearby Casa Pepa is Albergue Santa Mariña:
Phone: +34 981 852 897
Mobile: +34 653 626 864
Email:
casaantelo@gmail.com
Note, though, I'm not sure if they are still opened (they haven't responded to my inquiries). Their coordinates are 42.957341, -8.926247
Google. For whatever it is worth, I have never heard much good said about this place -- anytime pilgrims have written me about this place the feedback on it has been poor. Take that with a grain of salt, though, since everyone's experiences are different.
Hope that helps.