Searching FRED by keyword is often the fastest way to find the data you need.
From the home page, enter keywords in either search box to find the most relevant data series. The box in the upper right will offer suggested series as you begin to type; this search box is always available no matter where you navigate in FRED and is a good way to browse available series.
Search results are initially sorted by relevance to display the series you are most likely looking for. If you are not sure which series to use, the one at the top of the search results is a good bet. Click the title of any series to see the graph.