Best method to store coins in cold wallet?

Hi guys,

I am looking at entering the crypto market with ETH, but am just looking to hold for years and years and not touch the coins. I understand that a cold wallet is the better method, if I secure it correctly, but I'm unsure as to what are the options out there for doing such a thing.

Can anyone give some advice. Just want to keep my potential investment safe like the rest of you kind people.

Many thanks