Ok here an unexpected combination:
Captain Oicunn with Palpatine and Ion projector can bumb a ship and stick to it until all hit points are sucked. And still shoot at other targets. For efficient blocking Expert Handling is recommended.
Optionally, to double the effect: Take Daredevil with dauntless title to suck 2 hitpoints per round in exchange for stress.
Palp+Oicunn+ion has been know since the Tooth came out