Guild and Scrap addons
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https://www.curseforge.com/wow/addons/group-calendar-for-classic
Group Calendar: This addon an ingame calendar which can be shared between multiple people, It's pretty good for marking raid days or events for your guild.
https://www.curseforge.com/wow/addons/scrap
Scrap (Junk Seller): This addon is pretty freaking good for making farming for gold more efficient. Basically it allows you to choose what to scrap and what not to scrap, it has an ingame tutorial that explains what other features it has and how to use them. I find this to be way better then the scrap all option in Leatrix Plus
These are two pretty cool addons I find quite nice, thanks.