Hi

I am looking for a scottish terrier puppy but can't seem to find a breeder anywhere.  I realise that for some reason they aren't as popular as some terriers but when I was a dog boarder I looked after one called Maggie and she was delightful.  Any help would be much appreciated. I am looking for a companion for my miniature schnauzerxx

You should try the relevant Breed Club which may help you avoid a BYB!!

Try looking here  https://www.champdogs.co.uk/breeds/scottish-terrier/breeders
You are going to have to wait but it is the best thing to contact a breeder, see their dogs & get to know each other & have a puppy when they breed, however long that might mean waiting....