What should I grow next?

Going to start some seeds for 12/12 from seed, ive got some cash for some good fem seeds so I may as well. Also need a good seedbank who delivers quickly and safely to the us. So what strain handles 12/12 from seed well, and yeilds decent. No autos, they will be under my 400w hps.

Something that handles heat and low humidity well, mandala has claims that they breed plants that handle those conditions well. Any experience?

Thanks guys, I'll eat my words I bought an auto strain.
Your Order
Product Quantity Price
Heavyweight Fast & Vast Auto Autoflowering Feminised Seeds
1 Seeds Per Pack 1 £5.94
FREE: 1 Green House Jack Herer Feminised Seed and while stocks last 1 World of Seeds Auto Amnesia Fem from discreetseeds