Witch - Welcome to the world of W. i. t. c. h.
TotalFinder - TotalFinder is a plugin for Finder.app which adds tabs like in Chrome browser, dual panels similar to TotalCommander and more tweaks.
Hyperswitch - HyperSwitch provides a compelling alternative to HyperDock for keyboard junkies. What's New
Path Finder - The Finder, reinvented. Path Finder is an award-winning file browser and management application for Mac OS X.
Contexts - Switch between application windows effortlessly — with Fast Search, a better Command-Tab, a Sidebar or even a quick gesture. Free trial available.
Forklift - The most advanced dual pane file manager and file transfer client for macOS.