@Ethan_Jeremiah makes several good points. EUR/USD is the most traded currency pair in the world, so there is lots of analysis available for it both technical and fundamental. Minor currency pairs would get less coverage by comparison.
Depending on where you live though, you may prefer to start by focusing on another currency pair. For example, if you live in Canada, you may want to trade USD/CAD. If you live in Australia, you may prefer to focus on AUD/USD instead.
The time of day you trade may also be a factor. For example, short term traders tend to like the volatility caused by economic data releases. If that is you, then you may want to focus on the Euro if you trade the European session, or the Japanese yen if you trade the Asian session.