It's the wrong question to ask. The question to ask is "For a local small business, what does a "natural backlinking profile" look like?
"Natural" looks like a mention on the local high school football team's website. Natural is the local TV station listing the local business as a charitable contributor for a community project that they sponsored. (In my town they remodel houses for poor people that can't afford it.) Food Bank contributor. PTA contributor. Mention on the City Council website for having supplied the sodas for a local celebration.
Here's what's NOT natural:
Any kind of purchasable spam backlink from any Vendor, anywhere on the planet, anywhere, any time, period, amen, that is all.
If someone is offering to sell you backlinks, they are offering to get your website penalized. How hard can it be, really, for Google to spot the one out of ten, one out of twenty, one out of fifty local businesses for any particular niche that is cheating and gaming the system?
DUH.
The "SEO Gurus" would have you believe that Google is stupid. At least, that's what you'd have to believe in order to think you are going to get away with something. Here's the first place Google looks:
Page 1.
That's it. Ten results, and the cheaters are probably closer to the top than the bottom. Most have a few citations, some have a LOT. Some have a handful of local backlinks connected to the community and yet one in particular has 1,000 backlinks from some website out of South Vietnam.
DUH. I wonder which business gets the manual review? Duh. Local SEO "Gurus" rely on you the client to be too stupid to imagine that Google isn't stupid. Back in the day I made the mistake of purchasing 20 Twitter backlinks and immediately got my client penalized minus 4 or so. The very same day. Turns out, the backlinks were from some kind of South Vietnamese restaurant review site. Who would have thought that Google would realize that South Vietnamese Restaurant Reviewers don't REALLY and LEGITIMATELY want to link to a local American Plumber multiple times. MAN! Who would have thought that South Vietnamese Restaurant reviewers were so CWAZY about American Plumbers. New trend, but I never figured out how to exploit the niche.
I'm just going to say it like this: You're wrong. Fundamentally wrong. Either you've been cherry-picking your information and only assimilating that which sounds good, promises fast, easy results, or you've been listening to the WRONG dude. If you were my client, we'd spent at least 4 hours trying to rewire your brain into a better understanding of what Local SEO is all about, what's feasible, what's a pipe-dream, and what are straight-up SEO marketing lies.