Macros
Focus Interrupt Macro
Good to have so you can easily interrupt with 1 keybind and not having to swap target.
#showtooltip Wind Shear
/cast [target=focus]Wind Shear
Mouseover Macro
Make a mouseover macro for every single targeted heal or dispel in your spellbook so you don’t have to click frames and just hover over them with your mouse.
/cast [target=mouseover](spell)
Weakauras
This weakaura that tracks your Cloudburst value is very nice to have: https://wago.io/CloudburstValue
Other than the specific aura above, I recommend that you get a general WeakAura package that tracks your cooldowns or you can make one yourself from individual auras.
https://wago.io/BJ8UY5f5m for example.
For a range of Shaman WeakAuras check out: https://wago.io/shadowlands-weakauras/classes/shaman