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
Fusebot - Write custom commands to integrate anything on Slack/Discord
Founders Nation - Find or become a startup cofounder
Invision - Prototyping and collaboration for design teams
Find A Maker - find a partner for your next project
GoodFirms - Find World’s Best IT Companies & Software on GoodFirms. This most trusted B2B research platform holds collection of Reviews, Ratings & Rankings, Company Profile & CEO Interview of over 6000+ IT companies & Software.