I'll be starting my third round of Mazar i Sharif ( The Real Seed Company ) in May, might send one out doors! The Mazar has tested to 20% thc! So not all land races are ditch weed! And many hashplants and highlands Sativas with "only" 10-12% will kick ass so don't buy into everything you see on the internet.EDIT: Late to the party post....
Plenty of breeders that do landrace stuff in the EU. Look up ACE seeds. Mostly landrace types of seeds. They are mostly photos, but have some autos as well
I'll put a second on Landrace Seeds
Irrazing does some great work, but mostly US I think. Look him up. If nothing else you'll enjoy his work
Karma genetis in the UK does really good stuff with some older strains. Especially sour D