Probably the training from Google for the Google Partners Exam heres a link to more information: https://support.google.com/partners/answer/3153810?hl=en
Have someone audit one such account with you to see what's required to manage it according to its goals.
The Google Ads Keyword Planner tool , SEMRush & AHREF tools useful resource for building strong keyword lists and helping to get your PPC campaign off to a running start.
