Go to IRC and beg. #bitcoin-dev #bitcoin-wizards, etc.

jimmysong

testnet faucets that I know
    https://coinfaucet.eu/en/btc-testnet/
    https://bitcoinfaucet.uo1.net/send.php
    https://testnet-faucet.mempool.co/
    https://testnet-faucet.com/btc-testnet/
    https://testnet.qc.to/
    https://onchain.io/bitcoin-testnet-faucet

You could probably get about 0.15 there

melvincarvalho

alternatively, use signet to do the test. hit up @kallewoof on Twitter to get a bunch of signet coins.

247bf84fda

I need it for specific test scenario and will send it back in few weeks latest. Any ideas are welcomed as well.