The safest way to store your coins is to create a paper wallet. Hardware wallet (ledger & trezor) are safe but are expensive (if you can afford it, hardware wallet are a very good/secure way to store your coins).
A paper wallet is FREE and consist of writing down your private key on a paper and store it somewhere safe.
TRX paper wallet generator:
In this tutorial I use tronpaperwallet.org (you can download it). If you have technical knowledge you can also run tronscan on an offline computer (download it from the official github repo).
CREATE: Create a (TRX) tron paper wallet.
When you generate a new wallet you will get the public address and your private key.
Public Address: This is the address where you can send your coins.
Private Key: This is your private key and YOU NEED IT to access your funds! WRITE IT DOWN on a paper and store it safely.
You now have a paper wallet where you can store your coins! For security reasons, you should have several copies of your private key and store them at different locations.
RESTORE: Restore from your private key.
To restore from the private key I am using the TronWatch desktop wallet. You can download it from github.
TronWatch Desktop Wallet: https://github.com/TronWatch/Desktop-Wallet/releases
You need to download & start TronWatch Desktop Wallet.
On the main screen click on "IMPORT KEY".
Type your private key and click import! You can now spend your tron tokens!