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 4 years ago
JavaScript.com - A free resource for learning and developing in JavaScript
CoFoundersLab - Meet 250,000+ entrepreneurs online
BundlePhobia - Find the performance impact of adding a npm package to your bundle.
Founders Nation - Find or become a startup cofounder
JavaScript Operator Lookup - A full list of JavaScript operators with examples
Findnlink - Find people to work with on your ideas.