Email campaign managements

Description

We need someone ongoing to write the email content and send to our databae of contacts.
Here's a summary of what I want that person to do.....
Leverage our email database of contacts (circ 1350) to help generate inbound enquiries.
This involves creating and executing a content calendar of high-quality, interesting and engaging emails to be sent through Active Campaign. This could be client case studies, tips, industry insights, etc. along with strong headlines to encourage people to open the emails. Content would come from talking to our team to generate the content, online research etc.
We are a Google Ads agency in the top 3% for Google so have tonnes of stories, insights etc to share.
The email database is made up of members of 2 trade associations where we are a preferred supplier where we have 60 clients, so content to be tailored to these niches to be relevant interesting and useful to them.
The outcome for the reader is : These guys are too good to ignore, I must speak to them.
Can you help and how much might this cost on an ongoing basis?