Daily Image Update on Blog Post

Question:
I have some 10-15 images across 5-10 blog posts that updates daily. What is the most efficient way to automate image update with code?

Product:
Media Manager, Blog, Html

What are you trying to achieve:

  • Upload new pictures daily and replace the old picture
  • The latest picture URL has to be the same as the old URL
  • Otherwise, I will have to go to the blog and manually update to new image

What have you already tried:

  • I researched the forum, it seems replacing the URL (static URL) cannot be done (via http function or manually)
  • The blog adding image or Html has limited capabilities
  • As a work around, I wrote html code to embed images from an external CDN
  • I have to resize the image for desktop and mobile using html code

Additional information:

  • The html code and externally located image takes time to load
  • Are there any mire efficient or faster loading way to do this?