Charmstone - The quicker switcher launcher for macOS
Contexts - Switch between application windows effortlessly — with Fast Search, a better Command-Tab, a Sidebar or even a quick gesture. Free trial available.
SwitchGlass - Customizable app switcher for Mac
VistaSwitcher - VistaSwitcher is an elegant and powerful task management utility for Windows OS.
Witch - Welcome to the world of W. i. t. c. h.
Hyperswitch - HyperSwitch provides a compelling alternative to HyperDock for keyboard junkies. What's New