GI saw something in the series reminding me of the “fight” between the old world with magic (fae) and the new world with humans. But maybe that’s just me.
If you don’t mind a bit of Japanese folklore, there is a great anime series called “Mushi-Shi” that has a lot to do with trying to protect people from Vaesen. In the series, Mushi are magical beings tied to every life form, and sometimes they put humans in grave danger. They are invisible except for a handful of people. Mushi-shi are traveling the world in order to keep Mushi from hurting people, and they have to adjust their methods because every Mushi needs a special ritual. I find it very inspiring.
NB: the show isn’t scary or gloomy or something like that, it’s peaceful most of the time. Not the ambiance you want in a Vaesen game. But the tricks played by the Mushi and the various ways to keep them at bay are really interesting.