ZenUI Launcher is described as 'Customize your launcher the way you want it to be: apply your favorite wallpapers and widgets, apply scroll effects or transitions, or organize your apps in folders. Secure your apps from prying eyes with integrated app locking features'. There are more than 25 alternatives to ZenUI Launcher for Android, Android Tablet and F-Droid. The best alternative is Lawnchair Launcher, which is both free and Open Source. Other great apps like ZenUI Launcher are KISS Launcher (Free, Open Source), Trebuchet (Free, Open Source), Microsoft Launcher (Free) and OpenLauncher (Free, Open Source).
The rootless Pixel Launcher that is both heavily customizable and ships with backported Android Oreo features and tweaks. Based on Launcher3 from AOSP, Lawnchair has all the features of the Pixel Launcher (including the Google Feed), plus customizability.
Trebuchet launcher is an AOSP (Android Open Source Project) based launcher developed by LineageOS team. This is a port of the popular LineageOS 15 ROM's Trebuchet launcher to enjoy on any device; working with any android version equal or greater than Android 5.x.
You can easily add any app launcher, so you won't ever again have to swipe through useless apps to find the one you need. You can also rename the launchers as you wish. It is not a real launcher replacing your home screen, just a holder for your favourite apps.