Free Royalty Free Images: https://unsplash.com/ 

Free Images: https://pixabay.com/ 

Generate data for free: https://www.mockaroo.com/ - Great for PAT or testing data

Paint.NET for image editing (using layers) - available for free download or on Microsoft store. https://www.getpaint.net/download.html 

Image Editor: https://www.gimp.org/

Canva - https://www.canva.com/ - design banners, posters or invites.  Teachers can register to get access to ALL resourses on Canva.  Love it!

AI: chatGPT, Google's Gemini