Preme for Windows - Speeds up your window switching.
SizeUp - SizeUp allows you to quickly resize and position your windows with keyboard shortcuts or a handy menu bar icon. Arranging windows on Mac OS X is tedious and imprecise.
GridMove - GridMove - A window management tool that can quickly arrange your windows into desktop grids.
Hammerspoon - This is a tool for powerful automation of OS X.
WinDock - WinDock is a window manager ideal for large, or multi-monitor setups. Features:
Moom - Move your mouse over the green zoom button in any window, and Moom's mouse control overlay will appear (as seen in the above animation).