I don’t know how much do you need for that transaction, but if you need amount over a cent. Expect a one hour browsing faucets.

The most active faucet, https://faucetpay.io.
They have a list of supported BNB faucets that will directly pay to your account. I have no idea how much is minimum withdrawal amount. You may give it a try, if you care that much about the swapping transaction, dont waste time on that faucets. Buy it or find someone can help you with that.