Easy way to create post templates?

Ideas
1

I would love for there to be a way to create templates in the posts section that can have specific layouts.

Like lets say I have a weekly post series with a specific header image and formatting as well as specific tags.

Thanks

2

I use snippets and insert the elements I’d like to use in a draft when I write a post I just duplicate that draft and get going

3

That doesnt help for hashtags etc