Do you mean amaranth? If so, there are a lot of companies that carry many varieties, including the one above.
Google tries to correct Royal Basil to Holy Basil and every search that I find with Royal Basil leads to recipes or describes it as sweet basil so I can't help you there. In my own garden I have the best luck with a Thai basil variety.
Thanks for all of the excellent replies.... I have been in contact with the place in Asheville before but I never bothered to search their website but just gave them that list. I truly appreciate the help with this. Have a good 2017....
I actually got some great information just from doing the search. Not only had I never heard of Sochan, but I'm going through blog posts on that nurseries page and finding new information about gardening in the South.
As and example, it would never have occurred to me to refrigerate regular vegetable seeds for a few days before trying to start them in the fall. We vernalize many perennials and tree seeds so it makes a lot of sense. This has the potential to be a big improvement over babying transplants in the house or hoping the fall temperatures arrive far enough in advance of frost to do any good.