I don't know what your MVP is, or even what it stands for. Minimum Viable Product?
But...
5 people per day via a few blog posts doesn't actually sound awful, around 20% of people that are taking a look are sticking around. For me, that's enough to pay my bills (not a lot more), but I'm sure we have a different product.
I think you identify generality being a problem. Split your potential audience into discrete segments that make sense to you (these boundaries of discreteness may shift through time) and interact - ask questions like "Thanks for taking a look. How can we tailor this to your needs more / was there anything you wanted to use this for that you didn't feel you could?" You've got to ask your customers how you can make their life easier, and focus on that need.
Enterprise can have deep pockets, but may need careful understanding not only of their needs, but of who can approve requisition of the product / tool / service you offer. Small enterprises are typically easier in this regard.
General / social are often hard to monetise.
As a bootstrapper that generally avoids (though not always) funding, I'd go for the former, but that's my preference.
My 2c. Happy to add anything more.
