Blocksy is a modern WordPress site builder and theme. It was created by Sergiu Radu and Andrei Glingeanu in Moldova.
Blocksy is quite fast-loading, and it uses Gutenberg. The page-building process is pretty easy. Layouts are presented visually. They have a nice library of starter sites.
A Blocksy Companion plugin is also required to install the starter sites and other features.
The cost is $149 for a lifetime license.