Play2WinTV has included in their ESOTU add-on series, a video on fishing add-ons. This video is under 15 minutes and worthwhile if you are interested in getting your ultra rare Master Angler Title and Fishing Achievement.
https://youtu.be/-JtQSvrXvEY
Addons: Voltan’s Fisherman, Voltan’s Fish Filet, Rare Fish Tracker, and HarvestMap.