Before you make a decision, I would like to educate you a little on auto-flowering strains. The reason they automatically flower is because they have been crossed with cannabis-ruderalis. Cannabis-ruderalis produces next to nothing in amounts of THC. So, when you harvest, dry and cure your plant, it will not be as potent or as smooth as other strains.
The reason people get lowryder strains is because they have limited room for growth. What they don't know is, you can achieve any height you want with any strain by topping, fimming or using Low Stress Training (LST). All you need to do is a little research.
Other than that, it's up to you man. Any strain will work in the AG. Check out nirvana-shop.com for some good F1 hybrids for cheap. Or, if you're wanting stable genetics and you can afford more expensive seeds, look up attitude seed bank.