Alternative to CMD-SHIFT-4 more like Windows Snipping Tool?

Before starting my job I had only used Mac computers, so I'm very familiar with the CMD-SHIFT-4/3 option for taking screenshots. However, for my work I need to take a lot of selective screenshots in quick succession, which the CMD-SHIFT-4 option does not lend itself to in the way that the Windows snipping tool does (hard to sort through all the images on one's Desktop without taking the extra time to label each one). Does anyone know of an app, Chrome extension, or alternative tool on the Mac that more closely mimics the Snipping tool, which allows one to easily take a selective screenshot, paste it, and start again without the extra step of pulling image by image off of the desktop?

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