You might want to check out Centennial Seeds Otto.

We don't sell that one, but I was looking at it.

It's kind of a pheno hunt (like most of the very low THC to high CBD strains seem to be)
you could get practically no THC to very high CBD, an even ratio, or the standard high THC to practically no CBD

Of course, if someone had the resources to grow a few of these out, they might be able to isolate a good mother and the traits should be handed down to any clones.