Unfortunately there are no plastic miniatures available for this period so I had a strange idea.
With some scraps of warlord pretorians and auxiliaries I modified some plastic Gripping Beast miniatures.
The helmet is a Warlord auxiliary head modified, while the body is a dark age Gripping Beast warrior.
With the appropriate shields pattern they could be confused for Goths or other late Roman auxiliaries.
I converted also some Gripping Beast vikings to create an hypothetical late imperial unit