Is there any way to know what corruption level characters need to be at in order to get missing events? I focused on getting characters corruption levels up, and have gotten all but Jenny predator unlocked at this point (also Alex fertile, but saw about that in comments). But im missing scenes from many girls, like BJ from Carla, a couple with Haily and Sami, and also Lina.
If you look through the guide some choices have branching "paths" with different corruption levels listed, a lot of scenes/events are hidden in those sorts of places.
A hint for Lina, be sure to settle her debt at the end of the mighty quest (quite a few things are in there).
As for Haily/Sami/Carla on the other hand you just need to jump into their events and complete them in different ways.