Existing Corsairs with Custom Craftworld?

So I recently bought the Eldritch Raiders Battleforce and with that, I will be making a new Corsair army to go with my custom Craftworld.

I don’t really wanna make my corsairs as a custom corsair faction, I’d rather make them an existing faction. Are there Corsair factions that base out of numerous Craftworlds or have close ties to multiple Craftworlds? That would also make sense they’d cooperate and work together? Is there a major corsair faction that would fit best? From what I know Eldritch Raiders are pretty much aligned with Iyanden so I’m not sure how that would make sense.