But there's also another way. You can define the type of business you want first, and then try to find an idea that fits into that.
I did the latter.
For me, it was about trying to design my lifestyle to better match my preferences. To be in charge of my time & what I do. To work on my own terms & not have to ask for permission. To do work that intrinsically motivates me.
1⃣ SaaS for Userbase / encrypted.dev —
2⃣ Publish 2-3 ebooks / digital products
3⃣ Build and run a few commercial web apps on Userbase
4⃣ Build web apps for others based on Userbase