Ask HN: How can I find a cofounder?

I’m building a gamified product discovery platform and I’m looking for a co-founder, but many of the cofounders I meet try to pouch me for their own startup ideas and of the ones that are interested none of them are local to me. How can I find even a fractional co-founder, someone I can put on my pitch deck even in name only? Is there an app or a website for this?