I’d recommend Bismuth. Krohnkite seems to unmaintained.
Arrange your windows automatically and switch between them using keyboard shortcuts. All of that with different layouts and without a complicated setup of classic tiling window managers (i3, dwm or XMonad).
Features
Automatic window tiling
Dynamically tile windows, rather than manually placing each.
Floating windows
Fully integrates into KWin features, including:
Multi-screen
Activities & Virtual desktop
Basic window management (minimize, fullscreen, switching, etc)
Multiple Layout Support
Tiling layout
Monocle layout
Desktop-friendly layouts (Spread, Stair)
awesome, glad to see others using it!
(in the ~/.config/worm/autostart file, you can change configuration like border width, color, etc if you want, and you can use a program like sxhkd to bind stuff, eg to change workspaces: