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