I would use a photo mother and auto male. I would recommend the red dwarf from Buddha seeds as it is my favorite right now. My last plant pulled 106 grams dried, all organic with only adding water similar to how subcool dose his super soil but modified for auto. The plant was only about 24"x24" so it was compact and only went 65 days from breaking the surface. Its the easiest thing I have ever grown. I tried to order some regular seeds to breed with a few weeks back but they messed up and sent me fem seeds. The reason I recommend a photo mother is if you want to do a back cross. Its easy to keep a male photo alive but if you get a common mother that's easy to get your hands on you don't have to keep it alive. Blue dream for example I have had access to for about 3 years now and can get it any time. If I wanted to do a blue dream auto it would be easy to get a clone if I decided to back cross later. If I had a blue dream and killed my mother plant it would take me a few weeks but I could get new cuttings. Find something you have good access to for your mother. I gave another grower my pink kush mother in my avatar as it is only at F1 now and I did not want to keep it alive but he will clone it and keep it going so if I want to back cross later I can get it back which will probably happen. You also don't want to keep a male alive for a long time that could create pollen and contaminate a crop later down the road. When I get to F3 or F4 on my cross I have the mother photo as a reference for what I was trying to create too.