I've only found/seen a few ways.
One is IGG 88 B and Moralo Eval w/HLC
Very punchy and good for almost guaranteed damage if in arc.
Never played it but I've seen it around and looks effective, just suffers from the normal YV problems.
I've been running IG 88C w/HLC PTL, Adv S.
Manaroo w/ PTL, EU, Unhinged, Title.
Very mixed results, I can have games where the Aggressor is getting double evade/focus and lives the high defence dream but a string of bad dice rolls can end it all so fast.
Also finding that if I'm too sloppy or aggressive with Manaroo it doesn't end well.
Switched out Manaroo for Asaj with D/EU/PTL which added some control and is potentially better but I've only tried it once and I don't know if the synergy is really there. Didn't feel like I was boosting all that often.
What else do we have going for us on the IG 88 D crew card that people have used and is actually competitive?
IG88-B w/ HLC Kath PTL/HLC? 4 dice front and back?
All the small ships that can take it just melt in today's red menace meta.
Do I just need to give up my quest to make that card useful?