It's not that no one is giving direction, its you aren't looking hard enough. There is plenty of searchable answers. Opinions are "ehh", which is why I told the poster to look at grow logs- find actual info and go from there. Every strain can yield well to most peoples standards simply with enough training and light.
Here are links that took about 5-10 minutes to find. Look past the first page of the forums, or use a forum search tool to find more threads, as these are often just a few pages back. Should be at least 30-40 pages to skim through with these links. And this is just the tip of the iceberg, I didnt wanna spend hours digging up threads. lol.
Best HPS light- there are tons of threads for that.
-Why to use 1k:
-Digi vs. Mag ballasts:
- Watts/Lumen per sq.ft(read this one):
High yield- tons of threads
-high yield kush:
-best cash crop:
-Yield per plant (has lights and plants):
- High Yield Strains-
High Potency-
-High THC/CBD stains discussion:
IMO potency is all relative to the smoker, so I'll stop at one.
And GTD's Casey Jones grow for Rollin J...hehe. He yielded 3.2 lbs off of one 4x4 table under a 1k.