Quick look at DragThing by Jeffrey Mincey.
The name probably is derived from the option to drag app icons, documents, even Mac volumes onto a floating palette which lets you access files and folders, launch apps, and do it all with a single click… As simple as that sounds DragThing remains one of the most configurable, flexible, customizable Mac utilities I have ever used. Nothing compares with both capability and functionality, and getting started literally is just a drag and drop.
Agreed. I’ve used it for many years and though it hasn’t changed much, it’s been upgraded to run on macOS Sierra, and is highly recommended for serious Mac users who want to improve workflow.