Here is a chart of the types of chords you will most commonly find in sheet music. The shapes given are all based around the first few frets. The most useful chord shapes are outlined with a box. The other shapes are given for your reference only but in most cases would be better played holding a bar chord shape. Bar chords, although a little difficult at first, are ultimately easier and more convenient to play than most of the non-outlined shapes. All good guitarists play bar chords. The boxed shapes are generally easier to play and should be memorized. These open chords sound particularly good on acoustic guitars and for fingerpicking.
A
A#/Bb
B
C
C#/Db
D
D#/Eb
E
F
F#/Gb
G
G#/Ab
Am
A#/Bbm
Bm
Cm
C#/Dbm
Dm
D#/Ebm
Em
Fm
F#/Gbm
Gm
G#/Abm
A7
A#/Bb7
B7
C7
C#/Db7
D7
D#/Eb7
E7
F7
F#/Gb7
G7
G#/Ab7
Am7
Bm7
Cm7
Dm7
Em7
Fm7
Gm7
Amaj7
Bmaj7
Cmaj7
Dmaj7
Emaj7
Fmaj7
Gmaj7
A6
B6
C6
D6
E6
F6
G6
Asus
Bsus
Csus
Dsus
Esus
Fsus
Gsus
A9
B9
C9
D9
E9
F9
G9
A+
B+
C+
D+
E+
F+
G+
AB
BB
CB
DB
EB
FB
GB