Here is a simple list of all my AddOns that I use daily for World of Warcraft: Classic. I recommend using the Twitch App to download, install and keep everything updated. Some of these AddOns might not be found on the Twitch App.

Name Description
Advanced Interface Options Restores access to removed interface options.
Atlas Instance Map Browser
AtlasLoot Classic Shows the possible loot from bosses.
Auctionator A lightweight addon that makes it easy and fast to buy, sell and manage auctions.
Battle for Azeroth UI A Battle for Azeroth inspired User Interface.
ClassicAuraDurations Restores cooldown swipe timers on default Target Frame and Blizzard Raid Frames.
Details! Damage Meter Essential tool to impress that chick in your raid.
Fishing Buddy (Classic) Help with fishing related tasks, clothing, fish information, etc.
KUI Nameplates Pretty and useful nameplates.
Leatrix Maps Enhancements for your maps.
Leatrix Plus Quality of life addon.
Scrolling Loot Text Show you all items you pick-up as a scrolling text, with the the number and value of the item and the color of the rarity as font color.
Titan Panel Classic Adds a display bar on the top and/or bottom of the screen. Allows users to show and control information/launcher plugins.
WeakAuras 2 A powerful, comprehensive untility for displaying graphics and information based on buffs, debuffs, and other triggers.
Zygor Guides Viewer Classic Zygor Guides are high quality in-game strategy guides for World of Warcraft that will walk you step by step through every aspect of the game.
DejaClassicStats Improved character stats panel view.
Questie A standalone Classic Quest Helper.