Since we have Imperial Knights for Space Marines,Gork and Morkanaughts for Orks and Wraithknights for Eldar, what super units might be for other factions?
For Necrons, might be Monolith an Tesseract Vault or C'tan shards.
For Tau, Riptide and Stormsurge.
For Chaos, the best option would be Greater Demons.
For Imperial Guard, Baneblade and its variants.
But what for left races? I mean Tyranids, Dark Eldar, Sister of Battles, and maybe even Grey Knights and Skitarii? Do you have any ideas for them or other alternatives for the rest and how these super units will work?