These people are a great source right here in the US of A. They are picking up top shelf breeders all the time. The just added Brothers Grimm and and a few I have not heard of 

https://northatlanticseed.com/seeds/

The sister company sells clones but you have to pick them up.  I may be off base but I am thinking they will be a top shelf breeder eventually 

https://www.maineclonecompany.com/strains/