The RTX 3060 and RTX 3060 Ti should be arriving before the end of November, according to multiple pre-order listings on Chinese e-commerce platform Taobao. The RTX 3060 and RTX 3060 Ti may cost upwards of US$450 too, which would make them around US$50 cheaper than the RTX 3070.
https://www.notebookcheck.net/Early-NVIDIA-GeForce-RTX-3060-and-RTX-3060-Ti-retailer-listings-point-to-US-450-price-tags-and-possible-late-November-arrival-for-AIB-cards.499587.0.html
Honestly I dont see the point of getting a 3060 for 450$ as its way too close to a 3070.
I highly doubt the RTX 3060 will be $450. Seeing how they have priced this launch of cards with the 3080 being the same MSRP as the 2080 and the 3070 is 30$ less than the 2070 MSRP. I would expect pricing for the 3060 to be $300-$350 but of course hoping for that 30$ drop in MSRP from the 2060 to make it to 300. off of some leaks I would hope the performance to be somewhere between a 2070 super and 2080.