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.
Elementor - Elementor is a front-end drag & drop page builder for WordPress.
UserTesting.com - Usability testing has never been easier. Get videos of real people speaking their thoughts as they use websites, mobile apps, prototypes and more!
SiteOrigin Page Builder - Build responsive grid-based page content that adapts on WordPress
Userbrain - Easy, fast, and affordable user testing for websites and prototypes.
Brizy - The effortless way to build WordPress websites visually
userinput.io - Get on-demand feedback for your app, website or idea. Learn how to improve by hearing real opinions.