[throwaway72h9a]

Finding unique ideas that make money is difficult. But most problems that exist don't require some insane intellectual insights. One problem is that developers don't have experience of other sectors apart from the IT field. Dive deep into stuff like Agriculture, Logistics or any other sector and you will see unique problems that can possibly be solved by unique solutions. But as another user said the market is big enough that you don't always need unique ideas.

Another little trick you can apply is searching for new startups in different countries. Like maybe some early stage startup in Singapore, Hong Kong or Israel might be solving something that might work in your country as well. You can definitely get unique 'ideas' to get inspired using this.