Please share more info so we can guide you better.
Share your website URL.
Which theme are you using?
The following website to which you are referring might be using the premium theme.
Also, share the website URL that you mentioned in the Screenshot.
Here the blog post option in shopify:
By default there is no such template, you need to design this (Custom) Page.
This is an accepted solution.
By following this URL you can design a grid section but you need to customize everything.