Make it easy for your visitors to subscribe to your Mailchimp email audiences.
Demo: https://www.mc4wp.com
This extension integrates MailChimp with Ultimate Member and allows users to subscribe to your mailing lists when they register on your site.
Demo: https://ultimatemember.com/extensions/mailchimp/
MailChimper PRO is a WordPress MailChimp Form Plugin, that support MailChimp along with many more other providers.
Demo: https://codecanyon.net/item/mailchimper-pro-wordpress-mailchimp-signup-form-plugin/7644126
With YITH WooCommerce MailChimp you can manage email marketing campaigns for your ecommerce with a few simple gestures.
Demo: https://yithemes.com/themes/plugins/yith-woocommerce-mailchimp/
Creative email templates compatible with StampReady Builder, MailChimp, Campaign Monitor, Mailster, HTML, and other major email marketing platforms.
Demo: https://themeforest.net/item/creative-multipurpose-responsive-email-template-30-modules-mailchimp/28846595