Germanic tribal identity hasn't survived in the same way Native American tribal identities have. Most early Germanic peoples became part of some other larger ethnicity. Ethnicity is fluid and evolves over time.

Some examples:

The Rugians joined the Ostrogoths during Theodoric's invasion of Italy. They're never mentioned afterwards and likely were considered, for legal purposes, Goths.

The Ostrogoths lost a prolonged war with the Eastern Roman Empire. Their king was killed, and the ceased to exist as a people. Some left Italy to join the Franks. Some stayed and intermarried with the local population. Once the Lombards invade, it becomes difficult to tell which Germanic names from the region are Gothic and which are Lombardic.

The Vandals were also defeated by the ERE and dispersed to prevent future uprisings. Some Vandal soldiers were sent east to fight the Sassanids.

In Spain, the Visigoths formed a ruling class, but Goth and Roman eventually became class markers rather than ethnic identities. Any distinction became even less important when Reccared converted from Arianism to Catholicism. We still see nobility with Gothic names after the Muslim conquest, and occasional references to people of Gothic descent, but the Franks often intermarried with the remaining Gothic landholders and installed their own lords along the borders. It becomes difficult to tell Goth from Frank from then on.

In England, the various tribal groups that invaded set up several small kingdoms. They understood their affiliations with tribes that originated on the continent, but identified as Mercian, West Saxon, Northumbrians, etc... These kingdoms eventually gave way to a greater sense of Englishness, particularly in the face of Viking invasion.

The Franks ruled Gaul and gave their name to France, but lost Frankish in favor of Vulgar Latin/Old French. In Frankish controlled areas that still spoke a Germanic language, the Germanic language remained, but ceased to be associated with the Franks. Frankish would have been mutually intelligible with other nearby Western Germanic languages. Frankish ethnic identity became something different, tied to Frankia as a region or early nation-state rather than a migratory nation of people. We eventually stop seeing a division between Frank and Roman as everyone simply becomes French.

The Franks themselves were a confederation of smaller tribes, as were the Goths, Vandals, Marcomanni, and many other 'tribes'. Smaller groups would band together to fight or treat with Rome. They weren't entirely Germanic either. The Marcomanni seem to be made up of smaller Germanic groups, but were led by a king with a clearly Celtic name. Huns show up among the Ostrogoths. Gothic ethnogenesis is a contentious issue, but the gist of it is that the Visigoths emerged from various peoples that crossed the Danube to escape subjugation by the Huns, while the Ostrogoths incorporated groups that had stayed behind and later joined Theodoric the Great's faction. The out of date perspective is that they had clear antecedents in the Tervingii and Greutungi respectively, but we see groups identified as Greutungi joining the Visigoths and some Tervingi remaining behind, presumably joining the Ostrogoths later. Of course, some peoples from the same region formed other groups, like the Gepids.

In Sweden, various smaller groups coalesced into the Svear and the Gotar who then coalesced into the Swedish people. Some Gotar brought their ethnonym with them to the continent, and the ethnicity that developed there became the early Goths before their divided into the Tervingi and Greutungi.

In some cases, tribal identities survive in the form of regional identities. The Frisii gave their name to Frisia, but today we think of a Frisian as someone from Frisia rather than a member of a particular tribe.