Found my wallet from mining back in 2016, how to safely cash out?

Hey all,

back in 2016 I mined Ethereum on my PC and just found my wallet again, thankfully I saved it on a USB stick with a sticky note containing the password and just found it again. How do I safely cash it out for real money?

Is coinbase a good choice, regarding the fees?

How do I safely send the eth to my coinbase wallet? It says it only accepts via Ethereum network or other networks may result in a loss of funds.

How do I do this? Sorry for the noobie questions, just want to make sure I do everything correct 🙁

Thanks!!