Dexpot - If you don't have Dexpot yet, the new update makes it a must-have tool for Windows, adding a ton of features to your desktop that you never knew you wanted.
Ly - TUI (ncurses-like) display manager
Openbox - Openbox is a highly configurable, next generation window manager with extensive standards support.
LightDM - A lightweight display manager
VirtuaWin - VirtuaWin is a virtual desktop manager for the Windows operating system (Win9x/ME/NT/Win2K/XP/Win2003/Vista/Win7/Win10). A virtual desktop manager lets you organize applications over several virtual desktops (also called 'workspaces').
SDDM - QML based X11 and Wayland display manager. Contribute to sddm/sddm development by creating an account on GitHub.