I built https://probstack.io for the exact same reason. To help inspire makers for their next startup idea and validate even before writing a single line of code.

I’d love to hear your feedback and suggestions on this to grow this community together with all of you!

Instead of trying to look for problems and potential solutions, you should rather pick the target audience first. The thing is, let’s say you found a problem worth solving where your target customers are real estate brokers based on your personal experience of buying a home. Now if you want to solve that problem and build a business around it, you will have to immerse yourself fully into the “real estate broker community” for many years to come. If you don’t genuinely like these kind of folks, going to their conferences and meetups, reading their blogs and books and networking with their influencers will be a major pain in the ass and you won’t be able to make it through the inevitable dips along the way.

So maybe find an audience / target customer first (vetting them along criteria like purchasing power, reachability with marketing, etc) and then deeply immerse yourself into that community in order to find their pain points. Also, as a bootstrapper, I would look for flaws and weaknesses in solution they already pay for, so that you know that they indeed have a problem that’s worth $$ to them.