I'm avid runner myself and I see potential for a running shoe finder website which combines crowdsourced data and reviews with personalized shoe recommendations.
Users measure their foot and input info about their foot shape. Then they leave reviews about how their current shoes have been working. Then their foot specs and compared to the crowdsourced data to give shoe recommendations.
I have the plan for the whole business and the customer experience but I need someone who is capable and excited to build it and do the hands on work. I have 8 years of experience in online business and I run 3m+ year online course business so I have time only for the owner/visionary role.