Mostly scripts to automate the exploits.
Going in the order of the recomended learning path - starting with SQLi. Community soluations are excellent - make sure to check those out.
Section takeaways are here: https://apageinsec.wordpress.com/portswigger-web-academy-stuff/ (May also end up putting more details there if I have time.)
Rana Khalil (featured Community Solution)
Michael Sommer (featured Community Solution)
Lab list with difficulties from DeepFryd - helpful to see lab difficulties without having to click through.