How to Make Home Page Post Even in Size

Hi!

I am VERY new at WordPress, but I am managing and keeping afloat. Is there any way to make my home posts all the same size? Like this blog https://ohjoy.blogs.com/ posts or https://www.designlovefest.com/ blog. Maybe it’s the theme I’m using. I am not sure. I would love though to be able to correct it in my theme now. Thanks in advance, I really appreciate any and every help I can get.

My website https://www.fiftyfivesf.com