Nano Ledger S Hardware Wallet It is popular because of its relatively low price of $ 65 compared to its competitors.
Trezor Hardware Wallet Even if your PC is compromised with malware, your private keys will still be safe with Trezor. In this sense, Trezor is more of a vault than a wallet.
MyEtherWallet Paper Wallet If you dont trust the online version, you can even download it from GitHub and run it offline. Paper wallets are free but require an in-depth knowledge to set it up properly. In short, this type of wallets generally take a lot of hassle and are not advised for novices.