Pola de Gordón is a town with some services, groceries, a couple of pensiones and bars/mesones. Two hotels have closed, one recently, and the other many years ago. Both Pola de Gordón and Buiza are on the Camino del Salvador, which goes from León to Oviedo. If you plan to switch over to the Salvador, as @MikeJS did, you should stay in Buiza. Pola de Gordón is to the south, taking you back towards León. So if you sleep in Pola de Gordón, you will just have to return the 7 kms to Buiza the next day. I have found a nice looking CR in Buiza, but they don’t seem to do one night stays or rent by the room.
I have spent three nights in Pola de Gordón, and have slept twice in the rooms above the Mesón de Miguel, and more recently in the Pensión 15 de Mayo. Neither of these is special, but they are both perfectly adequate — cheap, less than stellar beds, decent bathrooms, clean sheets, all in all perfect pilgrim places. Mesón de Miguel is a decent place for an adequate meal.
One taxi in Pola de Gordón, just in case anyone needs it. Álvarez Suárez, tel. 987 586 058