If you don't need to batch crop multiple images to one or more different sizes, you can use the manual crop tool built-in to the HyperCrop plugin. To use this tool, move your mouse over to the image you would like to crop in the image selection panel of HyperCrop, and click the Manual Crop button. This will open the manual crop tool overlay.

When you've finished tweaking your image crop and resize settings, you can click on the Crop & Download button to download the cropped image to your computer from Figma.