There are lots of high yielding strains, but a few that I grew out recently were Kali Mist and Serious Happiness from Serious Seeds...those yielded almost the exact same amount, right around 8 oz, plus 1-2 oz larf each. This is in a 4x4 under 550watts of LED, 4 plants. One of my best yielders is a critical mass cross called Petrol Skunk. I've grown other big yielding critical crosses in the past too, those were from Delicious Seeds, another great breeder for a newbie due to their stable genetics-look into their critical crosses. I like their Sugar Black Rose alot and I'll be growing out their 11 roses soon too. Those are both European breeders, I've gotten their stuff from Attitude in the past, but I just noticed that Oregon Elite Seeds carries Delicious now too, though you'll pay a premium for them. Tons of good American stuff out there too, but I can't think of any high yielders offhand right now. Good luck!