Ly - TUI (ncurses-like) display manager
i3 - A dynamic tiling window manager designed for X11, inspired by wmii, and written in C.
SDDM - QML based X11 and Wayland display manager. Contribute to sddm/sddm development by creating an account on GitHub.
Fluxbox - Fluxbox is a window manager for X that was based on the Blackbox 0.61.1 code.
LightDM - A lightweight display manager
Openbox - Openbox is a highly configurable, next generation window manager with extensive standards support.