When I’m looking for a good idea, I try to generate lots of ideas. Most are bad, but that’s alright, because I’ve redefined the search as editing, and that’s an easier problem.
There was someone who mentioned a similar process
Share 1000 ideas, find 100 that resonate
Share 100 ideas, find 10 that resonate
Share 10 ideas, find 1 that resonates
and then find 100 ways to build on that idea