Hi. This site is helpful for finding a doctor experienced in bronchiectasis:
https://www.bronchiectasisandntminitiative.org/Research/Registry/Bronchiectasis-and-NTM-Research-Registry#map

Just as there are oncologists who specialize in specific types of cancer, there are pulmonologists who specialize in specific lung conditions. Finding a pulmonologist and/or an infectious disease doctor who are experienced in bronchiectasis will make all the difference in the world for your treatment as will learning techniques for effective airway clearance techniques (ACT). Best of luck to you!