Preview x posts for static homepage

Hi all,

I’ve been trying to have a preview of my last few blogs including title and first few lines to show up on my static homepage where wp is located at site/blog.

I have found these:
https://www.ads-software.com/support/topic/143596?replies=6
https://www.ads-software.com/support/topic/157674?replies=4
https://codex.www.ads-software.com/Creating_a_Static_Front_Page#Integrating_WordPress

Which do a great deal.
I have been able to designate a number of full posts that show up or a list of titles, but not a simple preview of defined length. For SEO purposed I do not want to use javascript (buzzfeed etc.).

Any help is appreciated.