You can get the Tharriker’s Strike set by crafting it at the Singer’s Outpost location in the West Weald zone. This is located down in the southern portion of the West Weald map, directly south of the Vashabar wayshrine. Additionally, you can reach it by going down the road southwest of the Ostumir wayshrine.
The Tharriker’s Strike set will likely have limited use in either PvE or PvP, simply because other, better armors with Major Berserk are available in ESO. However, it is simpler to trigger the proc for Major Berserk, which may appeal to players who struggle with light attack rotations. Additionally, since it is a craftable set it can be made in either Light, Medium, or Heavy. So not only is it easier to obtain, but you can choose any armor weight.
For most players, Kinra’s Wrath will be the end-game Major Berserk armor they want to collect. That set not only gives you steady up-time on Major Berserk if you can keep a steady rotation but will also grant Minor Berserk to group members within 12 meters. However, it is a Medium Armor set only, and can only be found in Black Drake Villa.