Open source clearly has a profitability problem.
One of the issues is that people can't find great open source projects out there -- there are solutions just sitting in plain sight that people just can't seem to find!
I built Awesome F/OSS to help with that:
https://awsmfoss.com
At this point there are so many great projects out there that it feels like I'll never run out of stuff to promote.
For example, for the Indie Hackers audience, Raider is particularly awesome:
https://github.com/valeriansaliou/raider
It's a self-hosted tool for running affiliate programs! Quite the niche demand, but if you're building some SaaS product that grows with affiliates I bet you'd want to know it existed!