Not really arguing they are the best ( I don't typically wear jeans so I can't say I'm an expert, but I own some of these, and know a guy who works with them/other sort of hipster-y local Japanese companies that do this sort of thing). And they are pretty nice, and they are very proud of their dedication to the pedigree of their denim/jean making techniques.
https://www.samurai-j.com/en/concept