Based on our record, Y Combinator Co-founder Matching seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
One idea I just remembered is to find a business co-founder that already knows a market well and sees an opportunity. Startup School's co-founder matching service is quite good. Source: almost 3 years ago
CoFoundersLab - Meet 250,000+ entrepreneurs online
SoundGrail - SoundGrail Music App designed for pianists, guitarists, and DJs.
Founders Nation - Find or become a startup cofounder
Figure - Propellerhead creates world-class software products and services that inspire music makers and provide the foundation for a worldwide creative musical community.
Find A Maker - find a partner for your next project
Splice - Music creation, collaboration, and sharing made simple.