High CBD strains are the only ones that I have been consuming for the past year or so. 'High CBD' refers to anything that's above 1%. Unfortunately it's often a misused term since the CBD has been bred out of most strains for the past few decades. So anything more than nothing is generally considered high.
That being said, I've had Cannatonic strains that were close to 17% CBD, and a local one called Purple Bubba Bora that was around 18%. Generally Cannatonic will have the highest percentage, though there are new strains being developed all the time across the world.
I just grew this one under CFLs and yielded a little over 2 ounces. Amazing plant with Jack Herer genetics. Really nice relaxed stone with all cloudy trichomes too. Not too heavy of a couch lock at all. (Wait for more amber trichomes for a heavier lock)