I don't believe there's one or a small number that you should look at. Hence, when we undertook the best practices piece of work for the GTAA, we looked at 26 international airports, because it is from taking that broad view that you start to get the multiplicity of the flavours of solutions that are out there.
Schiphol in Amsterdam has made a huge effort to minimize noise in communities and swaps runways so many times a day that it becomes boggling for other airports to consider, yet they do not have a night ban. They have more night flights than Toronto Pearson. It really does need a look across a broad number of airports to pick up the different best practices that can then be applied.