Based on your parameters, the best way to go forward is to hire a micro-virtual assistant.
A Micro-virtual assistant is a digital day laborer.
Somebody who would work for you for only one day.
It means that you need to hire people from countries with large population of individuals who speak English as a second language like India, Pakistan, Bangladesh or the Philippines.
You only need to instruct your virtual assistant to search for blogs using Google and how to apply certain filters like domain authority and backlink accounts.
Whatever the case may be, by hiring a virtual assistant, you can save time and money.
Virtual assistants from the Philippines can set you back a measly twenty five to seventy five dollars a day.
That is peanuts because they can produce a huge blog list for you that is sliced and diced to your requirements.
Most importantly, that list will have contact information.
You can even instruct them to do the initial legwork by contacting those blogs using a customizable template and multiple email addresses.
One thing that you need to know is when using a virtual assistant, do not pay for time.
Pay for results based on time.
It means that if you are hiring somebody for a day, do not just tell them that they'll get paid for seventy five dollars or ten dollars for a day's work.
That is not going to credit because that person will probably drag his or her feet or produce bad results.
Frame the offer in terms of deliverables instead.
If you have a realistic idea of how many blogs somebody who is reasonably intelligent can research in a day's work, peg the amount of deliverables to that figure.
For example, offer twenty five dollars for at least thirty to one hundred blogs depending on difficulty.
This is the best advice that you could be given if you do not want to get left off.