Best way to manage images on your gatsby blog (Gatsby + mdx)

[EmaProv]

Hi everyone!
I'm working on a blog these months and almost at the end of the project, a question came to me. I have a simple gatsby based blog, a homepage, an "all posts" page, and a post template page based on an mdx library. Now since I think this blog will collect a lot of images during his life and since I had so much problem with the gatsby-remark-image-attributes propriety in mdx that doesn't make my images fluid at all, I want to ask you what is the best way to manage a collection of images in a gatsby environment? I thought storing all the images locally in the future will make my site so heavy, but use a service like "Cloudinary" (to store all the images in a separate location) will make it very expensive at a certain point. Anyone could help me?