AltTab - Windows alt-tab on macOS
Rectangle - Window management app based on Spectacle, written in Swift.
Quicktab - Beautiful chrome new tab replacement.
BetterTouchTool - Nov 5, 2017 - BetterTouchTool is a great, feature packed app that allows you to configure many gestures for your Magic Mouse (1 & 2), Macbook Trackpad and Magic Trackpad (1 & 2) and also Mouse Gestures for normal mice.
rcmd - rcmd makes app switching instantaneous!When you have a lot of apps open, finding and switching to them might feel too slow using Command-Tab or the Dock.Hold down the right side |⌘ command| and press the first letter of the app name to focus it.
Switch Center - Next-gen macOS Control