Elementor - Elementor is a front-end drag & drop page builder for WordPress.
Divi Theme - A flexible WordPress theme with the power of Divi Builder built in.
OnePager - One page theme builder for WordPress
Layers - A simple Wordpress site builder & its free forever
Brizy - The effortless way to build WordPress websites visually
Designmodo - Timesaving tools for designers, developers and marketers. Designmodo offers website and email builders.