Here's some stuff that can help with Congregational Songs and shouting music:
Alternate minor 1 and minor 2 chords
Key C#
B-E-G# or C#-E-G# (start high on keyboard, go all the way down, go all the way back up)
A#-D#-F#
G#-C#-E
F#-A#-D#
E-G#-C#
D#-F#-A#
(repeat)
Key Db
Cb-Fb-Ab or Db-Fb-Ab (start high on keyboard, go all the way down, go all the way back up)
Bb-Eb-Gb
Ab-Db-Fb
Gb-Bb-Eb
Fb-Ab-Db
Eb-Gb-Bb
(repeat)
Alternate major 1 and minor 2 chords
Key C#
C#-E#-G# (start high on keyboard, go all the way down, go all the way back up)
A#-D#-F#
G#-C#-E#
F#-A#-D#
E#-G#-C#
D#-F#-A#
(repeat)
Key Db
Db-F-Ab (start high on keyboard, go all the way down, go all the way back up)
Bb-Eb-Gb
Ab-Db-F
Gb-Bb-Eb
F-Ab-Db
Eb-Gb-Bb
(repeat)
Various Bass Lines
Key C#
C#, E#, F#, G, G#, A#, B, B#, C#
C#, D#, E, E#, F#, A#, B, B#, C#
C#, E#, G#, A#, B, A#, G#, E#, C#
C#, E#, G#, G, F#, A#, B, B#, C#
C#, B, G#, G, F#, A#, B, B#, C#
C#, A#, G#, G, F#, A#, B, B#, C#
C#, D#, E, G#, F#, A#, B, B#, C#
C#, D#, E, E#, F#, E, D#, D, C#
C#, D#, E, E#, F#, E#, F#, G, G#, B, C#, E, F#, A#, B, B#, C#
G#, A, A#, E, D#, A#, G#, G#, C#
G#, G, G#, A, A#, A, A#, F#, G, A#, C#, E, D#, C#, A#, C#
C#, B, A#, E, D#, A#, G#, A#, B, B#, C#
Key Db
Db, F, Gb, G, Ab, Bb, Cb, C, Db
Db, Eb, Fb, F, Gb, Bb, Cb, C, Db
Db, F, Ab, Bb, Cb, Bb, Ab, F, Db
Db, F, Ab, G, Gb, Bb, Cb, C, Db
Db, Cb, Ab, G, Gb, Bb, Cb, C, Db
Db, Bb, Ab, G, Gb, Bb, Cb, C, Db
Db, Eb, Fb, Ab, Gb, Bb, Cb, C, Db
Db, Eb, Fb, F, Gb, Fb, Eb, D, Db
Db, Eb, Fb, F, Gb, F, Gb, G, Ab, Cb, Db, Fb, Gb, Bb, Cb, C, Db
Ab, A, Bb, Fb, Eb, Bb, Ab, Ab, Db
Ab, G, Ab, A, Bb, A, Ab, Gb, G, Bb, Db, Fb, Eb, Db, Bb, Db
Db, Cb, Bb, Fb, Eb, Bb, Ab, Bb, Cb, C, Db