Is the Electrum Litecoin Wallet legit? Was it created by Electrum just like the Bitcoin one?
If you think about storing different sort of coins for a longer period, you should consider cold storage, especially hardware wallets. Prices are sooner or later will become lower as time goes by, (ledger nano s is about $70), and they allow you to store a huge sort of coins, from bitcoin to litecoin, ether, etc. you can check it at the different wallets' webpage. They have the neccessary interface implemented, to manage your coins. If you want to use paper wallet, you will need a wallet software, to manage the paper wallet, so you will be searching for a legit wallet again. Hardware wallets solve this problem for you, but they costs money, paper wallet is free. Why hardware wallets are cost money (besides the physical hardware part) is the wallet software that they provide to you, with the neccessary updates (firmware and online wallet software).