There is a new article with an overview of studies into the Viking Age from the past decades. It is non-exhaustive, but gives a fine general overview how new discoveries or insights have helped to expanding existing knowledge about Vikings and their place within the early medieval world.
The article is in Open Access and can be read here: J. Lund, S.M. Sindbæk, ‘Crossing the Maelstrom: New Departures in Viking Archaeology.’ In: Journal of Archaeological Research (2021). https://doi.org/10.1007/s10814-021-09163-3. There is also a summary on Medieval Histories.