Hi guys!
In the past few months I tested a few different approaches how to penetrate retail stores with online product. It looks like I finally have a "blueprint" how to onboard them without griddy distributors. This is not the the fastest way to do it, but it's definitely the cheapest.
Below is my step-by-step guide that I'm using in 5 different GEOs in Europe at the moment and it's working ... except in Germany. 
1. Find TOP3 most popular (BIG) brands in your niche
Big brands usually have on their corpo site a subpage called Dealers or Partners. In most cases they list all their authorized dealers which means store name, phone number, address, email, website. This is actually the source.
Here is one example what you're looking for: https://browning.eu/dealers/
When you find the right brand and their dealers ask a developer or outsource on Upwork to scrape all the emails and other data into CSV file.
2. Edit the database
Edit the database so that you have in one column email and in second name of the store. This is optional but can increase the engagement rate.
3. Open Mailshake account
Mailshake is email outreach tool that you connect with your Google Suite, this is important because you email will get into Primary box which means much higher OR.
4. Write 3-5 emails
First email is super important so think about what about your product is something that other sellers would be impressed about.
In our case is the video how wild boars are going crazy sniffing our product.
I know that video is super important for us, thats why I added fake YouTube video in the middle of email. When they click the image, they are redirected on our best performing YouTube video.

In the first email I tell them that we are looking for new partners and they are qualified because we know they are selling brand X. Brand X = the brand we scrape emails from.
Follow up emails are very simple and short (eg. Hi, just checking if you received my email.)
5. Close the deal
When the store owner reply to the email, someone from our team start communicating with them and try to close the deal ASAP.
I was suprised, but it's working. 
Here is screenshot from MailShake from the campaign (intro email only).

We got 12 leads (2 were an auto-reply msg and were counted as leads) that were asking about the price list and terms. 
As you can see from the screenshot below, most of them are not making huge orders, but once in a while you find a whale. 

IMPROVEMENTS
Current flow is working and we got quite a few new stores, but there a still a few things to increase the conversion rate. Here is what I'm working on as we speak.
Telesales
A few days after the first email, I would like to start calling the over phone. That way is much easier to convince them that they need our product. But it's challenging because we are in Europe.
Personalization
A few weeks ago I found a tool lemlist.com. With Lemlist you can send out personalized content inside emails.
For example ... upload in Lemlist company name and email then when you are writing an email, you can take a picture of your team in-front of the whiteboard and Lemlist will dynamically add company on the whiteboard. It looks dope, really!
Our VA is now finding logos for all important stores and we will try to dynamically add their logo on our package and send them. I believe this will have even better engagement.
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I'm posting this here because I know some of you have their own products. One you have email ready and database collected, it's super easy to run this.
Have a great weekend guys!
Cheers,
wakeboarder
Hello,
Thanks for sharing your method with the community. Looks very interesting. Can you please detail your approach when your are contacted for terms and quantity ?
shuchishin
Wakeboarder strikes again!!
And this method can work even if you don't own the product!
I'm thinking: Wholesale business - doing research and testing products from a few manufacturers to find a decent one with good quality and pricing, getting a few retailers onboard by selling at-cost or close, then negotiating bulk discounts with the manufacturer and there would be your margin. 
And lemlist.com IS quite dope! I'm going to recommend this to a friend of mine who's looking for more SEO clients - there are so many applications you can apply this tool to!
Thanks Tim for taking the time to write another gem of a post!
Amy
Hi All
The MailShake tool seems to have a lot of targeted potential but not a lot of discussion on STM.
Has anyone else use MailShake effectively ?
I also stumbled across this product that seems to be a MailShake alternative with some potential www.snov.io
They have a built in scraping function to build lists direct into Snov.io and I believe also allows Google Suite ( thus higher delivery )
MailShake or Snov.io thoughts for targeted list building and cold email delivery ?
Thanks
I've just had a client on phone who's sending over 15,000 emails he's lifted using snov.io - Will let you know