Dominant 7ths, 9ths, and the classic I-IV-V.
60 chords in this genre
C7
C9
Cm7
C7#9
C9sus4
Db7
Db9
Dbm7
Db7#9
The Elektra Chord — R. Strauss, 'Elektra' (1909)
Db9sus4
D7
D9
Dm7
D7#9
D9sus4
Eb7
Eb9
Ebm7
Eb7#9
Eb9sus4
E7
E9
Em7
E7#9
The Hendrix Chord — 'Purple Haze' (1967)
E9sus4
F7
F9
Fm7
F7#9
F9sus4
F#7
F#9
F#m7
F#7#9
F#9sus4
G7
G9
Gm7
G7#9
G9sus4
Ab7
Ab9
Abm7
Ab7#9
Ab9sus4
A7
A9
Am7
A7#9
A9sus4
Bb7
Bb9
Bbm7
Bb7#9
Bb9sus4
B7
B9
Bm7
B7#9
B9sus4