Vacation homes and apartments in the Albula valley
There are no large towns in the Albula valley. Filisur and Bergün are somewhat larger. Both can be reached by train and are located in very pretty locations. Most rentals can be found in Bergün.
Interhome offers thousands of holiday homes and apartments across Switzerland. They offer discounts on both early and last minute bookings. That makes the Interhome website a good place to start your search:
https://www.interhome.com/switzerland/: all holiday homes
https://www.interhome.com/switzerland/early-booking-discount/: find the discounts for early bookings
https://www.interhome.com/switzerland/last-minute/: find the last minute offers