Where to safely put 80k in eth?

Hey guys, so for a little back story on me is I've worked a regular job most my life, and lived below my means. A few months ago I decided to branch out, and got into some business to generate over 80 grand in Ethereum. My main question is, is it safe for me to just leave in my coinbase? I am by no means a crypto guru, I just happened to get paid in Eth. I don't want to pay taxes on it, and I honestly have never seen this much money in my life. My friends and family have said to buy gold, or invest in the stock market but they honestly don't know what they're talking about. Any advice is appreciated thanks ????