Here’s a handy random chord generator. To generate random chords for your productions go HERE and decide whether you would like it to generate triads, 7th chords or triads and 7th chords. Hit "generate" and it will generate random chords ready for you to play or program.
To find how each chord is made up go to http://www.looknohands.com/chordhouse/piano/
What I have found really useful at this stage to help find the various chords is to colour code them on my keyboard. Place coloured stickers on each of the keys comprising a chord . Use a different colour sticker for the keys of each chord - these stickers can be found at most stationary shops.
There you have it! Chord progression made easy.