where can I find workout programs to change up things for my clients.

I would consider looking on bodybuilding.com for workouts. Under their workouts tab in the training section you can search for specific exercises, programs, muscle groups, etc. that are desired! I use this site very much as it gives me a lot of good ideas for workouts.
Here is the link to the page…
http://www.bodybuilding.com/fun/bbmaintrain.htm