What is the difference between types of Vandoren saxophone reeds?

I am a baritone saxophone player. I have been playing for 5 years (I'm in high school). I am getting into jazz and I was trying to figure out what the other types of Vandoren reeds do and if they are worth buying. I am currently using Vandoren original size 3 reeds (mainly for concert band stuff). I was looking around on the internet and I found various types of reeds like ZZ and java. What is the difference between the reeds?