The very best way for you to secure your Cryptocurrencies will be to get a Cold Wallet or Hardware Wallet. There are several Cryptocurrency Hardware Wallets available nowadays among them Ledger and Trezor are the most popular ones.
If you are wondering what Hardware Wallets are then let me explain it to you. Hardware Wallets are special types of Wallets which store your Private Keys in the Hardware itself which is always disconnected from the Internet unless you want it to.
Now Paper Wallets can also be a safe bet to store your Cryptocurrencies but it is definitely not safer than a Hardware Wallet and as for PC Wallets, those could be accessed if you are online all the Time and someone with Malicious Intent knows you have such Cryptocurrencies. Although the Blockchain itself is pretty much unhackable the rest of the products like Wallets and Private Keys are not so you need to store them safely.
