Has anyone found a good to to place feedback array ?

Binayre Pirates seem to be a good fit. They are cheap enough that the self damage isn't too bad of a set back and their Low PS make it likely they will get used as blockers. A ship with Feedback Array can be use it against a ship that it is touching which allows a blocker to deal damage to the ship it blocked.

ya I made a 4 man team with them it's interesting