Trezor or Ledger are the best way to store bitcoins, paper wallets are much easier to loose, not to mention the price of buying a hardware wallet will make you want to keep track of them.
and when it comes to keeping your money or coins, the main concern you should pay attention to is “how safe can I keep it”. and I think Trezor offers the best security for your coins.
At Trezor, the main goals are mobility, security and reliability. Trezor provides you with a reliable, efficient, mobile and 100% secure hardware Cryptocurrency wallet. When you get all these features from a trezor product then it's up to you to decide if trezor is the best, but in my opinion Trezor is the best.