Vague questions are difficult to answer.
There are class specifics quests that you would get from your trainer at the appropriate level. There are also some obsolete quests in the level 50-55 range that people tend to skip nowadays because the rewards from the quests no longer justify the involved process to do them.
If you want more information, there is a "Quests" tab at the top of the page that you can pull down and get information for class specific quests. That's probably your best bet if you require more information.