Just got in bitcoin

I’ve recently got into bitcoin after missing the boat first time around and it seems like a good time to buy. I have some bit coin held in the Coinbase app and some in a Coinbase walllet. I get the difference between it being on the app and in the wallet. I.e it going to be safer in the wallet.

Can someone explain to me where would be even safer place to put it. i.e how I would go about creating a cold storage for them. Or a wallet that isn’t tied to any company or institution like Coinbase. Please don’t message me with any scams. Thanks.