Many times I hear among jazz musicians the idea of what scale(s) should go with what chord harmony.
It makes sense to understand what scale works best with what harmony so that you know which pitches to chose from when constructing a melody, improvisation, counterpoint, etc.
Below is a lengthy (but not perfect) cheat-sheet for multiple kids of scales, and what chords work best:

Note that this graph is turned on its side so that it can fit your screen better. To turn it, simply download the picture and edit it with a rotation app.
To read this cheat-sheet, find the scale you want starting on the right scale degree of the key that you are in. From there, look at the harmonic possibilities as the Roman numerals relate to the key that you are in.
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