Template kits is an interesting foray into the plugin space by the behemoth WordPress themes seller, Envato. It’s a free plugin, available in the official directory, which allows you to import ready-designed pages and blocks using the Elementor or Beaver Builder page editors.
A Gutenberg category may potentially be also on the cards in the future, but it’ll first likely need some sort of layout options incorporated within it before you can design pages similar in scope to that of the other two builders.