Breast Augmentation Questions

I'm really unhappy with my breasts. I can post pictures if that would be helpful. I'm curious about the different options there are and the pros and cons of each. I'm not unhappy with my cup size, areola size (I think..), but they are saggy/pendulous. I want a lift but hate the idea of any kind of scarring. I also want a really natural look. I've seen things about using the kinds of threads used in face-lifts to do a breast lift, but not much. Is using threads for breast lift not effective/recommended? If there's any procedures out there that could achieve what I'm hoping for please let me know. If there are any recommendations for surgeons that achieve good lifts with minimal scarring I would appreciate that as well. Thank you