How to find a good startup idea: https://www.reddit.com/r/startups/comments/8v9myj/how_to_find_a_good_startup_idea/

When looking for a niche, look for people actually complaining about the problem and actively looking for a solution. If they’re not shouting about it, even if it can be done better they probably won’t invest the time to look at better ways to do it.