Branda Pro is the smoothest WordPress branding plugin for white labeling your CMS.
Demo: https://wpmudev.com/project/ultimate-branding/
With White Label Branding for WordPress you can do exactly this. Take full control over the branding in wp-admin and decide who has access to what features.
Demo: https://codecanyon.net/item/white-label-branding-for-wordpress/125617
Travel Blog App is easily the most user friendly and lightweight app to quickly get the blogs you need.
Demo: https://codecanyon.net/item/flutter-blog-app-with-admin-panel-travel-news-branding/28825231