How to transfer USDT (TRC20) from your wallet? The cheapest way? (Close)

There are several TronLink wallets with USDT (TRC20), but no TRX.

So I’m trying to find the cheapest or cleverest way to do this.

Option 1: Only TRX (no energy rental) only, but expensive

Option 2: Rental Energy + Use Minimal TRX

And I heard there is a smart contract

Option 3: Use a smart contract❓ My question:

1. What would you recommend as the cheapest and safest way to 2025?
2. Is there a way to completely drain my wallet to $0? Even if you get a quote, I think you’ll always have a dust TRX left in your wallet that you can’t transfer due to gas fees.