While searching for a larger selection of Dynamic Wallpapers to use on macOS, I came across a few awesome collections.
Dynamic Wallpapers Club
Custom made, beautiful selection of dynamic wallpapers from various contributors.
My favorite dynamic wallpaper here being «Fuji» (as having visited Japan recently).
dynwalls
Mostly Space related dynamic wallpapers for macOS. More detailed change cycles over Dynamic Wallpapers Club‘s contributions (hence larger wallpaper file sizes).
From the dynwalls collection my favorite dynamic wallpaper is «ISS».