Is this software? Can you build it yourself? What kind of investment would be needed? Is your credit good enough that you can get a personal loan? Would it require more money than that?

Your other option, of course, is to seek angel investors and VCs. You may have some success there if you have some knowledge of the industry or product that they can't immediately duplicate. If you choose this route, be careful how you word this:

"It would be the only player in this industry"

That's usually a big red flag that the start-up doesn't know who their competition is. Adding "subscription-based" to the front doesn't instantly mean you are the only one in your industry.