Addons

Handy Addon for people chasing achieves –
Achieve It
Achieve It aims to make using and tracking achievements easier.
Built directly into the existing Achievements frame, it provides a number of modifications.
Achievement categories are broken down into further sub categories making it easy to see, find achieves you have or don’t have
Check it out on Curseforge

Another handy addon to help keep track of where you are while questing
BtWQuests
BtWQuests:Shadowlands
A quest journal that shows your progress within quest chains in a simple and easy to follow manner, showing not only your current quest but also all the future quests in the line, how they all connect and other quest lines they lead to or require.
You will need to add whatever zone it is you are wanting (ie as above BtWQuests:Shadowlands)
Check it out on curseforge