You can make your own with a drag drop editor in Shortcuts. Something along the lines of “copy to clipboard” action with input from shortcut enabled and then add to share sheet on that input. It seems easier to just use copy and paste in MacOs.
There are also a couple in the shortcuts gallery online if you have not looked there.
https://shortcutsgallery.com/siri-shortcuts/?_search=Clipboard
Note: mac automator will allow you to copy click based workflows and use them across the OS.