https://sqlmap.org

https://hackerone.com/reports/435066

https://medium.com/@ismailtasdelen/sql-injection-payload-list-b97656cfd66b

https://github.com/swisskyrepo/PayloadsAllTheThings/tree/master/SQL%20Injection

http://www.securityidiots.com/Web-Pentest/SQL-Injection/time-based-blind-injection.html

https://www.sqlinjection.net/time-based/

https://book.hacktricks.xyz/pentesting-web/sql-injection