I just installed VS 2017 4.6.01586. Then I installed MonoGame 3.6 for VisualStudio (with 2015 and VS 2017 options selected). When I tried to build my game (originally created from VS 2015) in VS 2017 it reports the following error:
The MonoGame content builder executable could not be located at 'C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\MSBuild\MonoGame\v3.0\Tools\MGCB.exe'!
I checked and there in no folder "MSBuild\MonoGame\v3.0" in "'C:\Program Files (x86)\Microsoft Visual Studio\2017\Community".
The game can build in VS 2015 works without any problems.