1TB EVO 970 Plus at $153 delivered if you have Prime, been watching out for a decent deal on this, not the lowest ever but pretty good.
The 2TB is $304.05 have not been watching that so don't know if a good deal or not….
https://www.amazon.com.au/Samsung-970-EVO-Plus-SSD/dp/B07MFZ…
Credit to @OZKap for pointing out this deal: https://www.ozbargain.com.au/node/694749 which is much better for the 2TB and is better for the 1TB if you care about the steam credit rather than cold hard cash! (and Amazon return policy). I can't vouch for BPC but they seem to get a good rap on here as well.
Edit: Amazon.com.au is on the list for the $20 steam credit https://www.samsung.com/au/offer/ssd-steam-wallet-codes-2022… but seems to be explicitly excluded from the credit for the EVO drives. *Portable SSD T7 Touch & T7 models only. Excludes SSD 980 PRO, 970 EVO Plus, 870 EVO and 870 QVO models.
https://www.ozbargain.com.au/node/694749
1tb 970 evo plus $165 Delivered (plus $20 Steam Wallet)
2TB $285 Delivered ($40 Steam Wallet)