Hi Amy, and welcome to cruise-chat.com.
Europe is so vast that we'll need some more information to help you narrow down your choices. How long a cruise can you take? Are there any particular countries you are interested in visiting? Any you don't care to visit? I'm sure others will come up with more questions to help guide you.
In the meantime, here's a link to a great place to start: http://www.europeportreviews.com/
. There's general information on the main page, and links on many of the ports along the left margin. Let us know if anything appeals to you. We have several European experts on the board who can answer your questions.