FT catalogs the strengths of over 60 charts divided into 9 categories.
There are so many ways to visualise data - how do we know which one to pick? Use the categories across the top to decide which data relationship is most important in your story, then look at the different types of chart within the category to form some initial ideas about what might work best. Among the sample files to accompany the FT's Chart Doctor feature. github 
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Start here, then browse the D3 gallery. site