Stories fall under certain tropes. Example of recurring ones :
CEO - rich guy + poor girl, first-sex pregnancy, runaway with child, often involves twins or triples or quadruplets. CEO will then chase/pursue the lost family. Beg the female MC on knees. Profess undying love.
Reincarnation - person with regret goes back in time to fix something, exact revenge, save self, save others, might or might not include romance. Spouse is usually powerful. Mostly happy ending. Usually contains romance and at least a dude with unrequited love. Horrible family with inhumane step sister or step brother will be there to make the MC even more miserable.
Game - leveling up, lots of statistics, intricate world setting, long chapters, monsters, magic, beasts.
Transmigration - person is revived in another world or alternate universe or in another person's body, usually will try to fix problems of the body's host and reconnect with host's old acquaintances. Usually comes with super power or super knowledge. Artist/actress/singer/lawyer/doctor/supermodel/gold medal athlete in one person.
Host will have horrible family or step family or betrayed by her lover and or fiance.
System - usually connected to either transmigration or game trope. Awards and punishes MC as it deems fit.
Now pick one of those tropes and pick the race. Human beings? Vampires? Werewolves? Monsters? Animals? Boggarts? Robots? Witches? Banshees? Ghosts?
You might think that those novels are trash, but Webnovel would not have put them online or even do marketing for them if they are truly without fans. You can see the amount of gifts and reviews and comments and PS and whatnot those novels get. They are adopted in WN because they already succeed somewhere else. Unlike most of the new authors here who are still trying to climb the mountain of glory.
The question is, what kind of original content are you looking for? The hidden gems are hidden, but not invisible. If you don't know what you are looking for, then tell what you are NOT looking for. You will get a bunch of recommendation by authors who are trying to shine