Tragedy, Gacha, Rape, Rape Victim Becomes Lover, anything with cheating, "the weak this the strong that" mentality, arrogant characters, Jade Beauties, hot-headed MC, extras over reacting to every single thing the MC does.
Anything that is either written by a Chinese or is inspired by them to me is automatically a no, and no this is not because I don't like Chinese people I just can't stand 90% of things they write.
And honestly? As I get older, "Harem" is getting so tedious. High school drama is another one too, I just don't particularly care about the struggles of a teenager.