If you're floating a Gallente, ECM drones might not be a terrible contribution. A Myrmidon for example has enough room for a full cohort of combat drones (75 m3) and ECM drones alongside that (25-50 m3, depending on size). With these, you want to find a way to make them attempt a scramble more often than usual. The suggested way is to order them to engage, wait until they get close enough, then call them back, wait for the command to register, then engage again. Apparently, this would make them attempt more often and make a scramble much quicker.
Along the same lines, an ECM or ECM burst fits into your mid slot. Not very effective if you don't have the tank to last until it randomly kicks in. ECM bursts only work when the enemy is close as well, though better chance of kicking in each run and (I think) is an area of effect.
Alternatively, as suggested previously, Warp Core Stabilizers. On the one side, they each add 1 point for warp strength (0 is required to warp, warp disruptors add -1, scramblers add -2). On the other, they have a targetting malus (range? I think) and they take up low slots which could be used for weapon upgrades, tanks, or other things.