Here are some good addons & weakauras that you can use if you would like to.
- Shadowlands dungeon abilities: https://wago.io/1aTWuerX4
--> All spells & abilities you need to be aware of in Mythic+ for Shadowlands dungeons with sounds
for the sounds you need: https://www.curseforge.com/wow/addons/sharedmedia_causese - Potender: https://wago.io/Wi5b8_TmZ
Gives an audio/visual alert when you kill a Night Fae running PodTender in an arena, so you remember to kill the pod before they respawn. - The raider.IO client addon: https://raider.io/addon
auto updates and logs everything needed for your raider io scores. - Action Bar Profiles: https://www.curseforge.com/wow/addons/action-bar-profiles
Add-on that allows you to setup and quickly switch between different profiles of your action bars, talents, macros and key bindings. - MBB: https://www.curseforge.com/wow/addons/mbb
1 button to rule them all. get all those minimap buttons into 1 button.
These are just some small recommendations, feel free to use them.