This guide shows you one or more of the best and most efficient routes to farm Arakkoa Feather in World of Warcraft Classic and is exactly what you need if you want to gather materials yourself instead of spending your gold on it on the auction house. If Arakkoa Feather is not what you are looking for, you may take a look at all available farming guides.
Arakkoa feathers can be farmed wherever there are Arakkoa (surprise!).
These are items that are needed to increase reputation with the Lower City faction in Shattrath.
Farming Arakkoa Feather in Terokkar Forest
You need a flying mount to get to the bottom right spot (Skettis).
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