I am looking for an N8N.io expert to help me build an automation based on tags and follow up emails

I am seeking an N8N.io expert to assist me in building a basic automation workflow based on tags and follow-up emails. My primary goal for the automation is auto email follow-up to improve customer retention. I have a CRM or email marketing platform in mind and will provide details. The ideal candidate for this project should have experience with N8N.io and automation workflows.
Probably create a database for my leads and attached the tag and remove the tag based on conditions, however I am waiting for suggestions too.