Charmstone - The quicker switcher launcher for macOS
Workona - A better way to work in the browser.
SwitchGlass - Customizable app switcher for Mac
OneTab - Whenever you find yourself with too many tabs, click the OneTab icon to convert all of your tabs into a list. When you need to access the tabs again, you can either restore them individually or all at once.
Witch - Welcome to the world of W. i. t. c. h.
Session Buddy - Manage Your Browser Sessions