Optimizing images

What’s the best way to optimize images for web?
I thought Photoshop but I’m finding that for big images it’s not getting the size down so much.
Thanks!

I use tinyjpg https://tinyjpg.com/

Same. Although most designers I work with are using Figma or XD, which might produce lighter original files than Photoshop, I’m not sure. (tinyjpg free plan has a limit of 5mb per image)