Hun, Alan, Avar, and other Steppe Nomad Movements

[Flavivs Aetivs]

Peter Heather identifies like a dozen groups of Goths in the primary sources. The Tervingi, Grethungi, and Radagasius' Goths all go on to form the Visigoths. The Amali emerge some time around 440, and eventually form the Ostrogoths under Theodoric. The Tetraxite Goths in the Crimea remain independent until the 7th Century AD. There's something like 2 groups under Hun domination that get variously mentioned after the fall of Attila's empire as well, and a third group that got settled in Thrace in the 420's and was eventually absorbed by Theodoric's Goths before forming the Ostrogoths.

Or something. Check out Peter Heather, "The Goths."