This is a tricky question and a bit hard to follow, just FYI.

My first thought, and I apologize if it sounds rude in any way, is that if you are a lead generation service or can do that, wouldn't you be able to do that for yourself? I am a 10 year veteran marketer and constantly face newbies who try to compare or pitch against us but after running a quick analysis on their platforms and all else, you can tell they struggle even for their own sake.

With that said, it sounds like what you have offers a lot of potential if properly 'packaged.' You obviously need to approach this as a SaaS model where you drive and offer as much value to prospects upfront and come back with the ask once a company has tried it or has encountered enough value to commit to a trial. The product packaging should be addresses in a reverse eningeering appraoch from the product market fit based on your realistic value proposition, value innovation, and the targeted demographic. Once you know who is your potential best client - you would then shape the product and its entire experienced based on them. For this, companies like ours www.Unthink.me - can help you find the right target market and do some basic research to get the demographic started and a go to market strategy.

On your 3rd question, there are many ways of approaching potential clients once you know who they are... from the ever helpful but slow to kick in SEO, to the quick and scalable Google PPC, to growth hacking is possible or inbound through blogging and content creation.
If you would like to some help or have any other questions please don't hesitate to message me.