Is anyone else too lazy to create blog post header images for each blogging platform?

I am currently posting my blog posts to 3 websites:

1. my own website
2. dev.to
3. hashnode

I'd like to post in even more platforms like Hackernoon and Medium.

I find it troublesome to create header images though. For each platform, I have to figure out the appropriate dimensions, then create an image on photoshop that works best for each.

Is anyone else having this problem, or is it just me?

I'm asking because I'm thinking about building a solution for it, so that we only spend 5-10 minutes making these images.

Thoughts? How do you create your images? Would you use a blog post header image generator or prefer to do it yourself using existing tools?