Mine would be Lawnchair Launcher. Almost exactly like the Pixel Launcher, but compatibility widened to non-Pixel devices and WAY more customization.
Rocket Launcher Sorry couldn't resist it In truth I'm quite happy with Nova Launcher, used it for a long time.
I always stick to the stock launcher. I had Samsung phones, OnePlus and Huawei and the fact is even if you're missing a few features and a lot of customizations, stock is always lighter and more energy efficient.
I'm using Microsoft Launcher. it recently updated and briefly the default launcher popped up before loading MS Launcher. was kinda weird and had a junky feeling like it's just a paint job. does it do this for all launchers?
I am using a UMIFDIGI Z2 pro/Android 8.1 and nova launcher free. is the best I have ever tried. and almost no ads!
Now I stuck with Samsung Launcher (TouchWiz home if I remember well) but the best launcher for me is Nova Launcher.