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.
UXpin - Design is really about solving problems. UXPin is the UX Design Platform that gets that right.
Elementor - Elementor is a front-end drag & drop page builder for WordPress.
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
SiteOrigin Page Builder - Build responsive grid-based page content that adapts on WordPress
Moqups - The most stunning HTML5 app for creating resolution-independent SVG mockups, wireframes & interactive prototypes for your next project
Visual Composer - Visual Composer is an advanced website builder for WordPress.