Popclip - PopClip appears when you select text with your mouse on your Mac.

Ditto - Easy to use interface; Search and paste previous copy entries; Keep multiple computer's clipboards in sync; Data is encrypted when sent over the network; Accessed from tray icon or global hot key; Select entry by double click, enter key or drag drop…

Pantherbar - Pantherbar is a tool that lets you perform instant actions when selecting text.

CopyQ - CopyQ : Clipboard Manager with Advanced Features.

Universal Tip - Programmable tooltip that can be used with every macOS app

RecentX - RecentX is an innovative launcher that gives you instant access to your files, folders, programs...