There are many types of parabolic antennas and their patterns differ significantly.
Assuming that you mean on classical parabolic reflector with front feed, pattern is called " pencil - beam ", and its 3D chart is illustrated on the following picture.
Cash will gert you access to both. More in one case, less in the other. What have you done to try to locate any of these?
As a first step try the search feature above. If that does not get you started then try searching the web. If you still have trouble locating what you need then write back, explaining what you have tried and what you still need.