I have been using Divi for more than a year now and I really love it. People at Elegant themes are constantly developing and upgrading the tools Divi have and as I searched, it is still less expensive than Webflow to get and host a website. Webflow is an amazing tool, but Wordpress still has a solid reputation.
OptiMonk - OptiMonk is the most powerful Onsite Retargeting platform, that helps you increase the conversion rate of your site, and get more leads by recovering lost visitors.
Elementor - Elementor is a front-end drag & drop page builder for WordPress.
Poptin - Create engaging and high converting website pop ups and contact forms in minutes. With Poptin, you get access to a feature-packed conversion rate optimization toolkit that converts more website visitors into email subscribers, leads, and customers.
SiteOrigin Page Builder - Build responsive grid-based page content that adapts on WordPress
OptinMonster - OptinMonster helps to convert abandoning website visitors into subscribers and customers.
Visual Composer - Visual Composer is an advanced website builder for WordPress.