I use two clipboard managers currently.
On Windows 10 I use 1Clipboard:
A universal clipboard managing app that makes it easy to access your clipboard from anywhere on any device.
It says “any device” but I do not believe it has any mobile apps. Since I now use the Microsoft Launcher for Android I may end up switching if MSFT makes one manager between the two? That’d be nice.
On Android I’m using Clip Stack:
Clip Stack The easiest way to extend multi clipboard for Android.
It works great and I like that it is open source.