DGBE.... (should it not be "B"?)is the same tuning as a baritone ukelele.

I'm not sure if they have specific chord charts for this instrument or not but you always transpose the positions from a soprano or concert ukelele. The fingerings will be the same but, of course, the chords will be in a different key.

As Ed suggests, they will be very similar to guitar chords and, in many cases, just playing part of the full chord for a string guitar will suffice. Not in all cases and you might have to *add* another note somewhere if it would have been played on the bottom two strings....