Was in a similar situation, went with 12GB 3060 from 6GB 1060. I get pretty close to going out of VRAM even with 12GB so 8GB isn’t really an option. Speed wise the 3060 is decent due to Optix, but still gets annoyingly slow on more complex interior scenes.
Unfortunately most of the things I get paid for is 90% zbrush so it’s hard to justify a spending on a graphics card, but if any other project comes up that needs rendering I’d consider swapping out the 3060 to a faster card, with minimum 12GB ram based on current experience. For Eevee 8gb might be fine - Cycles in my use cases is a lot more VRAM intensive.