If you would like to practice processing raw images, here are some (integrated) raw images.
https://app.astrobin.com/u/huntinghorn?collection=45384#gallery
If you click on an image, you will see in the notes, where it says, “If you would like to process this data for yourself, please feel free to download it and post your own version.” With a link to the FITS files.
The data is supplied by The Hunting Horn General Charitable Trust.
Please acknowledge by saying, "Data provided by Hunting Horn" and naming Hunting Horn as a collaborator on Astrobin.
Have fun!