You can try hacks in this sandbox accompanied by an instruction manual to get a better understanding of these hacks on your own testnet:
Instructions:   / flash-loan-reentry-attack-and-dex-oracle-m...  
Bricks Sandbox Github: https://github.com/BricksSandbox/hack

Resources from the video:
Reentrancy + Big DAO hack address that was hardforked out of existence:
https://etherscan.io/address/0x304a55...
BzX Oracle Manipulation: https://etherscan.io/tx/0xb5c8bd9430b...
BzX Hack Explained: https://bzx.network/blog/postmortem-e...
Front-running (Bancor):
https://www.theblockcrypto.com/post/6...
https://etherscan.io/tx/0x43f5612bacb...
All transactions in that fiasco: https://explore.duneanalytics.com/pub...

Race Condition: https://etherscan.io/tx/0xd0e5d7ed76f...
About:   / smartbillions_lottery_contract_just_got_ha...  

On Phishing:   / ethereum-threat-actors-part-3-phishings-sc...  

Overflow of Beauty Chain Hack:
https://etherscan.io/tx/0xad89ff16fd1...
  / alert-new-batchoverflow-bug-in-multiple-er...  

Parity: https://etherscan.io/tx/0xeef10fc5170...
https://blog.openzeppelin.com/on-the-...