Email marketing is a longterm strategy but that doesn’t mean there aren’t opportunities to hack the growth of your list and the effectiveness of your emails. Tools:
Mailchimp
Convertkit
Revue

How Your Customers Actually Read Your Emails:
https://conversionxl.com/blog/how-your-customers-actually-read-your-emails/

How Nanoleaf Uses Email to Humanize Its Products to Recover 30% of Its Abandoned Carts

Examples:
https://medium.com/@revue/the-definitive-guide-to-personal-newsletters-85b82ada546d

Good resource:

https://pjrvs.com/category/email-marketing/