We had good luck last weekend at Albergue fin del Camino, a non profit that didn’t show up on Wise Pilgrim. My son found the mention on Reddit; sorry I don’t have specific thread or subreddit but it’s a good idea to look beyond bookings.com or the standard apps if you can.
This site is run by Ivar at in Santiago de Compostela.
This site participates in the Amazon Affiliate program, designed to provide a means for Ivar to earn fees by linking to Amazon