On the Amazon page it says the release date is December 31, 2019. Almost exactly a year and a half away. I hope that's just a placeholder because that's a long time to wait.

Reference this: “Prime Savings: your price at checkout $47.99”

76 can already be purchased for PC, Xbox One and PS4.

also at GameStop

Nothing about Switch yet.

In the US at least, you can order it from Amazon.