The actual plug in is C:\Program Files (x86)\Waves\Plug-Ins V9\vitamin.bundle
But that is NOT what you scan in SOANR (or any other PC based DAW).
You should scan the "C:\Program Files (x86)\Waves\WaveShells V9" path
Because that is where either WaveShell-VST 9.6.dll or WaveShell-VST 9.6_x64.dll are located.
It's a little different than what you would expect, but it works 100% of the time for me.
Now if you have the VST3 installed then the shell is in
"C:\Program Files (x86)\Common Files\VST3"
or
"C:\Program Files\Common Files\VST3"