There are not many alternatives in 2020. If you have izekai or men powerdream fantasy, try royal road. If you have werewolves, try Inkitt. If you have high school romance about bad boys, try Wattpad.
The amount of creative work poured on the Internet increases like crazy every day, and since literally everyone can write their own story, getting people to read something is harder than ever. No genre, no quality, no amount of efforts guarantees success.
But popular tropes, short chapters, simple writing style and frequent updates usually do better than the opposite.
Overall though, if you do get popular, buy a lottery ticket. It’s one hell of a lucky break.