I am building a tool to simplify email template creation. In the demo below, I threw it a screenshot of a sample email from Notion and it re-created it almost perfectly using @react-email/components. The entire process took 70 seconds.
If you're already a react-email user, great! You know how much time it'd save for your workflow to draft react-email jsx. Otherwise, check out https://react.eamil which is an awesome library for crafting cross-platform email templates programmatically using React. It even supports TailwindCSS.
Yes! I mostly used it for transactional emails but it does also work for newsletters too! You can even add some personalization based on the recipient in React, which traditional drag-and-drop email builder won't be able to easily do.
But if your newsletter is totally static, beehiv / substack might be easier.