I'd be happy to test it and any other games on mac.
Also .exe files don't work on mac without another piece of software on mac the most common executable files are .jar and .app
if not I can help. Since I have a mac I could most likely port it over.
May I ask what Programming Language this is made in?
There are certain languages that tend to work better with mac though like Swift, C/C++ (Sometimes), C#, Java, and Python
Swift is probably the best option, unless It was made in Unity, Unreal Engine or Ren'Py they all have options for mac.
We are programming in Unity, it has the option to Mac, but we can't test it as we don't have a Mac or anyone close to us. Even if you could port it over, it is better to test it ourselves to fix any bugs before uploading it, but we really like the idea to have it on Mac too, so we are going to see how everything goes.