What has helped me, tho sort of unpopular is to use a synonym for the words you stutter on. As I’m speaking I know what I want to say; therefore, i know which words I know I’ll stutter on. So mid-sentence I’ll change the word and my listener had no idea, yet I still get my point across. So if i know i’ll stutter on the word “cold” (i struggle with hard C’s), i’ll change it to “freezing” or “frigid” - i wont stutter on those words and they mean the same thing to the listener.