[i_v]

I've found my past cofounders at hackathons like Startup Weekend and in general, around tech events and meetups focused around startups and entrepreneurship. From there, we worked on fun side projects together and eventually started companies with each other.

It isn't the worst thing ever to be a solo founder. In fact, I'd recommend you reframe your goal as, "I need to find someone with domain expertise in X, Y, or Z," instead of "I need a confounder." You're very likely to find someone who can help you with a few hurdles who might not necessarily be interested in having the weight of a company on their back. It's also less of a burden for you too since you can take your time vetting and won't be jumping into a "marriage" as it's often related to. ;)

Out of curiosity, what stage are you in? What skillset do you have? What areas could you use some extra hands in?