I just can't find small problems that...
1. people are willing to pay for, and
2. I can reach out to said people and they're open to trying it out
For example - I was thinking of helping content creators with content repurposing. So I met up with a guy who runs a podcast, and I told him how I could build a tool that repurposes his podcast episodes to LinkedIn posts. He said it's an interesting idea, but not something that he'd want to try out anytime soon. He's got more important things to do, and it made perfect sense.