The Ra'katai Nomadic Floatilla (RNF)
A band of nomadic rodent-esque peoples who have lived in space for generations, slender and thin with weak bones. They pilot a massive floatilla of light warships, merchant vessels, exploring craft, freighters, and mobile stations for living, which explore the galaxy. The Ra'katai often send out large groups of exploring vessels to plot and map out new FTL lanes of different types, using purchased versions of the most common galactic FTL drives to explore these new regions, open them up for normal FTL travel, and interact with smaller nations that may not have yet entered the galactic stage, bringing them exotic goods and weapons in exchange for things from their own homes to bring and recreate for sale elsewhere in the galaxy, bringing them more money for this life of exploration.
Due to being nomadic, they have no one location, and operate across the galaxy
They are inspired by the Outer Planetary Alliance later in the expanse series, with ragtag warships and stations. Their main colours are a rusty red with dark yellow and greys, as well as random other colourings demarking personal vessels.