Out of all three, I’d say option number one. But I wouldn’t spend hours per day reading aloud, even if you just did 20-30 minutes. At the end of the day, whatever happens on the day of the presentation will happen regardless. I wouldn’t rely on medication to definitely work. And the ‘smooth speech’ course is probably more aimed at those who don’t have a stutter/speech impediment and just need some general confidence with presenting. At the end of the day if someone has a speech impediment, a course designed for smooth speech isn’t going to do anything. The only proper way of being able to manage your stutter in that form is by learning speech techniques from a speech therapist, but even then there’s no guarantee that they’ll work all the time purely because the most you can do is aim to manage a stutter