If there was an alternative that had peer reviewed and evaluated measurable results, we would tell you about it. Unfortunately we don't have that kind of evidence of benefit.
A good friend of mine (Glen) here added lots of time to his life by undergoing RFA to the lesions in his lungs. It is a localized treatment, does not have systemic side effects, and can be used selectively on the largest/worst lesions in your lungs. It is worth exploring even though it is not a curative solution, it might be a time buying solution, to give other options time to work, or new alternatives to be found in clinical trials. I wish that there was a better answer for all this. Please take a look at current clinical trials and see if there is anything out there that you qualify for in your area. It is possible that one of them could be added to your current plan.