Packrats rejoice -- yes, you can get bigger bags in Battle for Azeroth
Bag | Vanilla WoW Wiki | Fandom
WoW Classic: Bag Space – Book of Jen
GitHub - shirsig/Cleanup: Bag sorting buttons for Classic (1.13) IMPORTANT: Requires https://github.com/shirsig/SortBags IMPORTANT: Folder name must be "Cleanup" IMPORTANT: The Vanilla (1.12) version moved here https://github.com/shirsig/Cleanup-vanilla
AdiBags - Addon for Classic WoW - 1.13.2
OneBag3 : Bags, Bank, Inventory : World of Warcraft AddOns
AMR Classic WoW: Best in Bags – Ask Mr. Robot
Classic WoW Inventory & Bag Guide - YouTube
Bags & Inventory | World of Warcraft Addons - DKPminus
Accountant Classic : Bags, Bank, Inventory : World of Warcraft AddOns
Baud Bag (Fan Update) : Discontinued and Outdated Mods : World of Warcraft AddOns