The most commonly used bar chords in open D tuning are also based upon the major chord, a 1st finger bar across all the strings. Other chords can be played by adding other fretted notes to the chord shape. Some of the more popular chords are shown in the following diagrams. The key note for open D bar chords is on the sixth string.
Major
Seventh
Sixth
Suspended
Add Ninth
Ninth
The following 12 Bar Blues progression is based around the open D chord, G on the 5th fret and A on the 7th fret.
Country Stomp II is played in open D tuning.
Dee Day is another solo played in open D tuning.