We don't have Schnauzers to rehome ourselves, we put people who have one to rehome in touch with those offering a new home. Hopefully somebody in your area will contact you if they are looking for a new home for their Schnauzer, However, since Coronavirus, we are not getting Schnauzers that need rehoming as a lot of people are at home and have time for their dogs. You can try The Miniature Schnauzer Club Re-Home and Rescue Trust - contact Caroline Wareing on 01242 696 768.
Or Schnauzer Houzer on Facebook, who do a great job of rehoming Schnauzers of all sizes and are usually looking for potential adopters