Michelle Anderson, founder of Clarinet Mentors (www.learnclarinetnow.com), presents a clarinet lesson on how to choose a reed that best suits your level of playing. There is a worksheet to accompany this video at: http://www.clarinetmentors.com/resources/ClarinetMentorsReedStrengthGuide.pdf
At around 10 minutes in the video I make recommendations of specific reed strengths for different levels of music. Other good reed videos to watch are:
What brand of reed should you use? http://youtu.be/5bxa2D0cPuY
How to improve a warped reed: http://youtu.be/-_XqxkCitJY
How to place reeds better on the clarinet: http://youtu.be/HI-Lx_8oMUI
How to adjust reeds to improve them: http://youtu.be/d9MJcpYIikw