Everyone with a chronic condition or disease must find their own path. 3 years later, I am still doing roughly the same, except 5 years post antibiotics, with my asthma better controlled, and stable Bronchiectasis, I now do airway clearance once per day and only use 7% saline if I sense an exacerbation or respiratory infection coming.
I find exercise, vigorous walking, yoga or gardening/ yard work brings up mucus efficiently for me.
Have you found anything not on the usual list of techniques helps you clear your lungs?

I realize that not everyone is so fortunate, but