Post on Pages

Hi,
I have try to figure out how to do it and install deinstall several plugins and searched in the web but have not found what I was looking for. I want to post posts on a specific page in my blog and I want to order my posts. Until now I use a plugin that makes archives looks nice but they are sorted by date. I want that it looks similar to:
https://www.edx.org/course-list/allschools/allsubjects/allcourses
This link is just for reference but I currently try to build an education site.
https://www.greentuts.yzi.me/biology/molecular-biology/
I want to post on the site biology/molecular_biology posts like proteins, DNA replication etc. that are listed in an attractive way.

like the link I showed you.
Do you think I should use posts or pages?

I am looking forward to hear from you.

King regards,
Greeneco