I use fanfiction as both a distraction from the stress of real life and, well, for entertainment. I suggest reading the stories I have favorited. They are funny, interesting, or both.
An incomplete list of things I dislike in a story:A lack of main character agency. An overabundance of original characters, especially when canonical ones could be used instead. Harem/Polygamy/Polyandry stories. Gender and/or sexual orientation swapping of characters, whether as an initial impetus or within the plot of a story. Male pregnancy. No, it does not matter how you try to justify it. Atrocious spelling, grammar, syntax, and/or vocabulary. Handicapping any character, in both the actual sense of the word and the converse, informal "to grant disability to". Following from the above, "power level" balancing. Insisting on physical conflict in place of emotional, mental, familial, moral, or any other form. Slow plot progression, to the extent that the characters, plot, and setting remain in relative stasis from chapter to chapter. Pornography, referred to as a "lemon" or not. This goes double for pornography featuring minors. Pedophilia as a plot device or, worse, integral and accepted relationship. Incest as an accepted relationship. Rape or sexual harassment as a plot device. Author avatars, in the form of self-inserts and/or characters preaching an author's beliefs. Use of untranslated words without proper justification in-story. Dei ex Machina. Making light of homophobia, racism, anti-semitism, and/or other forms of bigotry. (What I consider bigotry may not mesh with what you consider such.)