Alternatives to Dockside

Window peeking utility app

File manager

Add fully customizable extra docks

Quick Look extension for folders

Window management utility

Menubar app to easily manage external drives

Windows-style taskbar as a Dock replacement

View Spaces / Virtual Desktops in the menu bar

Drag and drop utility

Menu bar toolbox

Utility to preview application windows in the dock

Utility to display the Dock in the Touch Bar