World of Seeds (looks like) the kings of Landraces - but the FlowerBomb Kush I got from them didn't germ and the Wild Thailand I got was really really slow (I killed it by taking the humidity-bag off for too long, but it was already 2 weeks old, ridiculous). If you have any friends who have been to Jamaica, you should ask them - everybody be bringing seeds from the Jam. The older growers grow Landraces, the newer growers buy European ceeds. I love asking my pot smoking friends/growers to swap ceeds (especially landrace) with me; you can find some incredible genetics from their journeys. I'm working with a Nepalese landrace obtained 4 years ago from up in the mountains - It was a male but I've pollinated several plants with it just recently - and I've got 2 clones
So yea... that's my .02