Quicktile: https://github.com/ssokolow/quicktile

https://ssokolow.com/quicktile/

Nobody is mentioning it but it is such a great tiling manager, I use it all the time. Just select the window with alt-tab and then tile the windows with Ctrl+alt+numeric keyboards. It's quick and it doesn't need a mouse to tile windows. And it can integrate into any x11 windows manager.