GPUs are your best bet as of right now for mining Ethereum. ASICs, while more powerful, are not worth their cost for mining Ethereum. CPUs are even less effective. That said, you can still mine Ethereum with a 2060, although not at a very high rate.
NOTE: Warning: Mining Ethereum with an Nvidia RTX 2060 is not recommended. Ethereum mining is a very intensive process that requires expensive and powerful hardware. The RTX 2060 does not have the necessary specifications to mine Ethereum efficiently and it will likely result in a negative return on investment (ROI). Additionally, it is important to understand that Ethereum mining is a very competitive field and requires ongoing maintenance and careful selection of equipment.
You’d be looking at around 0.5 MH/s with a 2060. That’s not enough to make much money, but it’s a decent supplemental income. If you want to make serious money mining Ethereum, you’ll need to invest in multiple GPUs.