Hi Hussain - while it really depends on your area of expertise, some general courses that could help are Improv classes (they help with thinking quickly on your feet) and TV production courses (it's much less frustrating for a presenter when they are aware of the processes being used around them to make the show). If you know the area you'd like to focus on as a presenter, then those courses will help. If you want to go into journalism, then study journalism; if you want to present on an auto show, then learn as much as you can about cars, etc.
The added advantage of taking production courses is that they will allow you to make your own reel, or start your own show on the internet that will allow you to hone your skills.
Hope this helps, and best of luck!