Generally speaking at our level the best way to do this is to grow two strains and mix them together in small batches.
You will need to do some research though and unfortunately I have learned that if you get 4 seeds of a high CBD strain, one will actually be low in CBD, two will have average CBD and the fourth will have the high CBD. That is why you have to have the bud tested. The other option is to consider using Vape Juice.
High CBD Vape juice is available USA wide on the web right now. It is made from Hemp. What you would do is add that High CBD to vape juice with THC and then you have it!
There are methods to extract the THC bud into solids/ concentrated oil and then you can add an equal part of the CBD Vape and mix it with a vape product like Farm To Vape.
I'd like to refer you to this topic and I would recommend you start at the top and read through it. It's good stuff and with a little effort the high CBD/THC is very doable! @Wishingilivedina420state