Immune evaluation. Bronchiectasis can be indicative of an immunodeficiency. In addition to a pulomary specialist you should also seriously consider an immune evaluation.
A good Pulmonologist. Also don't smoke, avoid others who do, wood smoke & outdoor pollution. Adequate rest & nutrition, vitamin d & omega-3. Deep slow breathing (think yoga) & postural drainage can help clear breathing tubes. Treat infection - thick colored mucous - early with antibiotics. Use bronchodilators & inhaled corticosteroids if they help you. If you have a weak immune system add ivig or preferably scig.