Nova Launcher is one of the best customizable home screen replacement apps for Android phone. With the latest version (v5.2 beta 1), you customize it to get a look and feel of Google Pixel launcher or Samsung Galaxy S8 home screen on your Android phone. In addition, the latest version brings some very interesting new features introduced by Google with the release of Android O developer preview 2.
What is new in Nova Launcher 5.2 beta 1? If you are interested, install the Nova Launcher 5.2 beta 1 from Play store here (requires beta signup) or download and install the APK [HERE] manually and experience all the new features. If you have already installed the Nova Launcher, then first update your launcher to latest Beta version (5.2-beta 1) by going to Settings > Nova > Check for update (or installing the APK). Note that, in order to get Pixel Launcher or Galaxy S8 look on your phone, you have to configure Nova Launcher with icons and widgets. (source)