Root on A string
no fifthx7677x
E9 is the E dominant 9 chord. Its notes are E, G♯, B, D and F♯. A dominant seventh with a ninth added. Try it in a blues turnaround.
x7677x
Numbers show frets from the low E string to the high e string; x means don't play that string.
Every E, G♯, B, D and F♯ on the first 12 frets. The filled dots are the root, E. Build your own shape from any nearby group.
Other E chords
Other dominant 9 chords