How to move windows across displays in Gnome 3 with keyboard?
In Fedora 24 (which uses Gnome) the key combination Super + Shift + ←
or Super + Shift + →
moves windows between monitors by default.
If you play with Super + Cursor Keys
and then use Super + Shift + Cursor Keys
you should be able to move/minimise/maximise windows with ease.
First Option: You can use overview to drag the windows between monitors.
Second Option: You can set shortcuts for the keyboard to move it.
An OOTB key combination for Gnome 3 is Alt+F7, then you can use arrows to move the window. If it's not convenient, you can try Put Windows extension. I didn't manage to get a default key combination working, but changing it to Shift + Alt + ← and Shift + Alt + → worked for me.