See Part 1 here:
A search query like this is helpful `$niche site:instamgram.com intext:$country_code` . E.g: `beauty site:instagram.com intext:+234`
You can have a template pitch, but make sure it is customized with information about that business. See this cold email from @RampTshirts . To the ordinary eye, it looks like it was specific for hotels.ng. But it is not
You need to be able to tie a screenshot showing hard and believable numbers to it.
If your headline reads like negative news about their business, they will open. E.g: I cannot find your website in Google, Your engagement on Instagram is dropping, Your blog sucks, et al.
It will make you seem like an authority for digital services in that niche
Lastly, you can read this post by @matthewbarby. He is smart about these kind of things so I trust everything he writes - matthewbarby.com/the-perfect-pi…
Follow @dragilev s blog too - criminallyprolific.com/blog/
After getting them to commit to asking you a question or getting on a call with you. Try and understand the needs you did not think about, their concerns, and their business economics. It will really give you a sense of how to price your service.
Good luck.