How to find authorized tokens on the chain? For example, this time it's an STO, how to find other coins next time?

Binance IDO Staking Sniping Guide:

For example, let's find the contract address of the last staking event on Binance.

1/ Open the STO contract on your computer
(The STO contract can be found on the deposit interface of other exchanges)

Then find the contract address on bscscan.com

2/ Select Contract — Write — Connect to Web3
These three steps refer to the contract, interaction, and wallet connection respectively.
Then choose the second option to scan, scan and log in with the Binance wallet.

3/ Select Approve
Input the aggregation contract of the Binance wallet in the spender field
0xb300000b72DEAEb607a12d5f54773D1C19c7028d
(The aggregation contract can be verified from historical authorization records)
Enter the desired authorization amount followed by +18 zeros
Then you can skip the authorization and sell immediately.