Alternatives to Pixel Launcher

Works on MicroG?

It might work, but it would be useless without Google Search.

Open Source

Trebuchet

Trebuchet launcher is an AOSP (Android Open Source Project) based launcher developed by LineageOS team. Integrated on LineageOS

Lawnchair

An highly customizable Pixel Launcher alternative.

If you want gestures support try Shady Mods

Lean Launcher

An open source lightweight, customizable launcher similar to the Pixel Launcher.

Posidon Launcher

This launcher doesn't have pages, it has a scrollable feed. It's UI was heavily inspired by One UI.

Closed Source

Nova Launcher

Someone doesn't know him?