Can I add a widget for "related post' between the content and comment?

Hi there,

You'll need some sort of a plugin that does this for you.

We have introduced a way of doing it like the plugin Leo suggested on this thread -
https://generatepress.com/forums/topic/is-there-an-easy-way-to-build-a-related-post-block/#post-2070532

Or a bit of customization w/ Tom's very own WPSP - https://wpshowposts.com/support/topic/what-is-the-best-tactics-to-show-really-related-posts-on-wp-show-posts/#post-31731 - but is trickier to do so consider trying plugins that will require less to no coding.

Hi Elvin,

Got it, thanks.
Here's another problem for the theme Marketer. I noticed that the image width is not the same as content width in the blog page, as you can find in the link attached: https://snipboard.io/sq9gKx.jpg
Is there any easy way to change the image width?

Indeed the image is slightly smaller.

But we can make it go the same with as the content by adding this CSS:

.featured-image.page-header-image-single img {
    width: 100%;
}

Thanks Elvin,
It works, thanks very much for the patience

No problem. Glad you got it sorted. :D