The 3060 Ti is much closer to the 3070 than the regular 3060 actually. It depends on what type of games you play and resolutions, but I think the sweet spot between the 3 (and to answer your question) would be the 3060 Ti. I'm also looking at getting one, but I'm waiting for the price to come down some more. The launch price (Jan 2021) for the 3060 Ti was around R10k - R11K so the 3060 should cost around the R7K - R8K range. Prices are coming down every 2 weeks and will continue (hopefully).
Some comparisons:
Nvidia's RTX 3060, 3060 Ti, and 3070 are great graphics cards under $500, but which should you pick? Here's what you need to know before picking up a new GPU.
www.digitaltrends.com
TLDR - I'd go with the RTX 3060 Ti, but it's your money