One of the most exciting AI stock resources around. They recently added the Reframe feature, where you can resize and expand images taller, wider, or square.

Massive collection of high quality, royalty-free images at a small cost per year. They also added illustrations recently... and I might have been involved with the original launch of this Landing Page ;)

Another realistic stock AI resource but the UX is refreshing with a big canvas to refine and compare your prompts. I used Visual Electric quite a bit for visuals for Yo! Podcast Season 3.

My go-to for image size optimization for JPG, GIF, PNG and SVG. I simply right click on the item on macOS to kick off the compression.

Stock photo library with some of the highest quality curation I've seen. It's not cheap. We talking $85 for a single hi-res image or $175 for 1080p video. But these are less used, more stylish and definitely worth a search for your next project. They also have 'series' collections where you can browse more images from same photoshoot.