Please feel free to share yours in the comments.
- FoxyHippo has a lot of RBG-related videos. Worth checking out.
- Casters should consider standing close to their healers. Lots of specs have damage spells with that will jump to nearby targets (e.g, MM hunters). This will help break your healers out of crowd control effects. Pairing up might also help you peel for each other.
- I had a tough time targeting shaman totems in team fights. I now use the TidyPlates: Threat Plates addon. This allows you to select which totems you want show nameplates (e.g., spirit link) and to make those nameplates bigger. I make them very large so I can use a mouseover macro to target and kill.