Several games announced in the recent Nintendo direct up for pre-order at amazon. Typically speaking, the prices shown here are as good as it'll get (unless Harvey Norman does a gift card deal).
The other advantage of Amazon is the pre-order price garauntee. No payment required up front, and if Amazon drops the price you get the new price. Or, if they don't, and you don't like the price, you can cancel before release with no penalty.
NOTE: Amazon seems to have all the release dates wrong. They're all different to the officially announced dates. I'm inclined to believe the officially announced dates (opposed to believing Amazon knows something we don't) because the official dates are all Fridays.
$69 Super Mario Bros. Wonder (Release October 20, 2023)
Price expired $64 Detective Pikachu Returns (Release October 6, 2023)
Price expired $64 Pikmin 1+2 (Release September 22, 2023)
EDIT: Price expired Super Mario RPG now available at $79.95. But I'd be very surprised if that doesn't come down to $69 later tonight or tomorrow.
For any tragics like me, they've also got the amiibo:
$21 Zelda
$29 Ganondorf
vooks has a price list
https://www.vooks.net/nintendo-direct-preorder-roundup-june-ā¦