The best buddy for dash should be something that draws fire away from dash if possible
Hm, a bigger glass cannon? Rebels don't really have any right now. The X-wing is the biggest glass cannon for the Rebels.
I like Leebo + Wingman + Tactical Jammer + Gunner, because if you attack Dash through Leebo, he gets 3 defense dice. That's an indirect way of encouraging you to kill Leebo instead, it makes Dash slightly less of a glass cannon. In fact, I will have to run those numbers later.
doesn't have to be a glass cannon. But if the idea is to get Dash to late game getting them to shoot at something else early helps.