I'd definitely like to start a biz, but to start a business you need to fill a need in the market. Where else to get ideas but working for someone else? Oppsdai

I'd definitely like to start a biz, but to start a business you need to fill a need in the market. Where else to get ideas but working for someone else? Oppsdaily is good source, although it'd be nice to find more sources of need. There'd probably be more indies if that was the case.