Findnlink - Find people to work with on your ideas.
The Influencer Marketing Stack - Free resources to launch a killer campaign
CollabFinder - Find cofounders and makers to help build your project
Startup Stash - A curated directory of 400 resources & tools for startups
Co-founder Question Cards - Questions to ask your co-founder to know each other better.
Makerbook - A directory of the best free resources for creatives