itch.io

I just read today that the latest VMware Fusion 12 will be free for personal use. Go check it out. 

yes, as far as I am aware. I have downloaded an updated version that way already. 

You can play on Mac a couple ways. Look at VMWare or Parallels, or you can use Blue Stack.

If you downloaded through itch.io, just click the little down arrow in the top right of your screen, click on My Library, then find Among Us and click download. No need to pay again.