Avoid the MAX AND THE 737NG
Serious concerns have been raised about the airworthiness of the BOEING 737NG fuselarge (not the engines).
Turns out a subcontractor hand-made parts that were supposed to be CNC manufactured. When mated with other subcontractor assemblies much use of the 'Detroit Screwdriver' aka 'Birmingham Screwdriver' (hammer) had to be made, some of which were patched with filler, smoothed and they sprayed with green paint.
The affected bodies are supposed to survive 7-8 years of take-off and landing cycles.
Even the US Air Force is complaining about Boeing!
Compare this against the WWII Dakota 3 - some of which are still flying today!