Alternatives to Dockside

Window peeking utility app

File manager

Quick Look extension for folders

Add fully customizable extra docks

Window management utility

Windows-style taskbar as a Dock replacement

Menubar app to easily manage external drives

View Spaces / Virtual Desktops in the menu bar

Utility to preview application windows in the dock

Drag and drop utility

Shows the next meeting in the menu bar

Utility to display the Dock in the Touch Bar