I fly with a Dash 8-300 from Sydney to Lord Howe Island and among others.
The Dash 8-300 is easy to use to airports with lower runway length and one bar airports. But they are getting older and not newly available. Maybe somebody can help me with a replacement aircraft. As I do not find any...
I think it is pretty hard to find a model to replace DHC-8-100/200/300. DHC 8 has a pretty long range and can operate in airports with short runways. I think it is the only model you can use in some routes.