Adjusting Image Sizes

On the above page the blog images are different sizes and I would like them to be the same size. Of course, I could upload images that are the same size.

This article suggest that there is another approach:

https://www.wpbeginner.com/wp-tutorials/how-to-create-additional-image-sizes-in-wordpress/

Will this approach do what I need or is there a better way?

Thanks

• This topic was modified 4 years, 11 months ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not an Everything else WordPress topic

The page I need help with: [log in to see the link]