In a book, "Slicing Pie", Mike Moyers shows you different methods of securing talent prior to paying them a salary or securing investment capital.

You can also use an ICO model similar to IPO except it is using a digital token to secure funding with a promise to buy back tokens. There are several models there.

You can also try a crowdfunding site like Kickstarter or Gofundme.

If you are truly passionate about it, find a way to make it happen and NEVER give up.