Currently, Google image search has supported filtering results with a resolution of 70 MP (9600 x 7200). If you want to search for high quality images, this will be a great choice. It should be noted that for high-resolution images, Google results only show thumbnails with low resolution, you will have to access the original website to see the high-quality images.
To filter high resolution images, you can go to Tools -> Size -> Larger …
Wish you choose the image you like!