HI Drew,
I completed this certification a few years ago. You won't find anything geared specifically to CCBCO if I remember correctly, I would look for trainings/tools for CRCM or any other compliance related trainings. CCBCO is geared to community banks, but you won't go wrong with CRCM trainings.
Take any webinars you can find on the alphabet soup of regulations as well. Lots of free ones out there you just have to look!
When testing it's not about memorizing the regulation it's about putting on your compliance officer hat and putting it to use.
Good luck! You got this!