List of best file managers, as Graphical user Interface (GUI) and Terminal User Interface (TUI).
Graphical User Interface
Usability-focused file manager with tabbed browsing, dual panes, remote protocol support, archive browsing, integrated renaming, and file type previews.
The default file manager for KDE (Linux DE). It's my favorite!
Cross-platform file manager with dual-panel design based on Total Commander. Features include advanced searching, tabbed browsing, and plugin support.
Manage files effortlessly with a graphical interface offering offline access, dark mode, ad-free usage, and zip support, optimized for Windows.
The default file manager for Microsoft Windows, it's good. I like the design on Windows 11.
Modern Windows file manager with tabbed browsing, dual-pane view, column navigation, integrated archive tools, file tagging, QuickLook support, and appearance customization.
Similar purpose as File explorer developed on GitHub.
The Finder is the first thing that you see when your Mac finishes starting up. It opens automatically and stays open as you use other apps. It includes the Finder menu bar at the top of the screen and the desktop below that.
The default file manager for macOS, very basic and few options.
GNOME Files, formerly known as Nautilus, is the official file manager for the GNOME desktop, giving the user a simple way to navigate and manage its files.
The default file manager for GNOME (Linux DE), very simple.
Nemo is the official file manager for the 
Linux Mint operating system running the 
Cinnamon desktop. It re-introduced several features removed from the file manager Nautilus, from which it originated.
The default file manager for Cinnamon (Linux DE).
Dual-pane Windows file manager with Miller Columns view, tabs, customizable themes, long path support, regex renaming, image converter, metadata viewing, and batch file operations.
PCMan File Manager (PCManFM) is a file manager application, developed by Hong Jen Yee from Taiwan, which is meant to be a replacement for GNOME Files, Dolphin and Thunar. PCManFM is the standard file manager in LXDE, also developed by the same author in conjunction with other...
Ritt supercharges your existing file structure and uses a novel tag-tree approach to help you better organize your files and quickly retrieve what you need.
Hackable SQLite-based tagging, any file format, with scripts and C# plugins, powerful search query language, 100k+ files managed with ease.
Open-source, cross-platform explorer with a distributed filesystem in Rust, organizing files securely across cloud and local storage on multiple devices.
Thunar is a modern file manager for the Xfce Desktop Environment. Thunar has been designed from the ground up to be fast and easy-to-use. Its user interface is clean, intuitive, and customizable. Thunar is fast and responsive with a good start up time and directory load time.
The default file manager for XFCE (Linux DE).
Tabbed browsing, powerful file search, dual pane options, scripting, customizable interface, bulk renaming, portable use, and advanced preview for files.
Terminal User Interface
exa is a modern replacement for the command-line program ls that ships with Unix and Linux operating systems. This command is used by terminal users, administrators, and developers hundreds of times daily, as well as being useful when writing automated scripts.
Visual, text-based file manager for terminals supporting copying, moving, deleting, searching, and editing files remotely and locally in full-screen mode.
Initially forked from 
noice file browser, nnn is a super fast and resource-sensitive, terminal-based file browser.
Terminal file manager with VI key bindings. It provides a minimalistic and nice curses interface with a view on the directory hierarchy. The secondary task of ranger is to psychically guess which program you want to use for opening particular files.
Terminal-based file manager featuring customizable themes, multi-panel views, keyboard shortcuts, offline support, no tracking, ad-free operation, and plugin extensibility.
Vifm is a file manager with curses interface, which provides Vi[m]-like environment for managing objects within file systems, extended with some useful ideas from mutt.
xplr is a terminal UI based file explorer that aims to increase our terminal productivity by being a flexible, interactive orchestrator for the ever growing awesome command-line utilities that work with the file-system.
Comments
pcman-fm is pretty good. comes in both gtk2 and qt versions