Here are some simple shapes that demonstrate the "triangle" approach to chords that is the Django style.  Specifically the C minor 6/9 shape for that full sound, and big power chord on the bottom for crunch.  The C-6 shape "magic chord" is the minor 6 starting on the low 6th string with only there notes (root, 6th, and 3rd). C, A, Eb. Mute everything else until you are ready to fill out the chord.

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The magic chord C-6 shape starting on the low E string can be used for: C- chords with different extensions, F7 chords with different extensions,  C dim, C half dim, B7b9, etc.  If you are staying on one of these chords for a longer time, starting from this shape makes it easy to fill out all the other specific notes of the chord.  Besides B7b9, that's a weird voicing. Your bass player will hate you if you do that one for too long.