Naut+Suction+Crab: Nautilus has a long charge time, so Suction taking a while to explode allows Naut to play off the damage better. You can't throw many, but having a bomb provides a nice tool and a fair amount of options. Crab synergies well with Nautilus because:
A. Crab allows Nautilus to play anchor, which is good since Naut is good for backless comps.
B: Nautilus keeps things out of its range. When you pop Crab, you can have a more aggressive position while still knowing you are safe (assuming there aren't Chargers.)
C. Crab gives Naut AoE and an arcing shot, which helps it take down things behind cover.
D. Nautilus stays alive well, but if you have no ink, Crab lets you stay alive for even a little bit longer, letting a teammate help you out, or letting you run away.
E. Baller reference. That's just pretty cool.
I would also like Heavy Edit+Beacon+Wail: Edit with Beacon is good because Edit can't use subs in fights, and it is a very aggressive weapon that can support other aggressive weapons. I like Wail because it helps with kill time, provides an ink refill, and most of all, lets you use your main weapon. We already have Tact, so having a weaker special would feel fine, and Wail would allow you to play extremely aggressive and fast.
I rambled a bit, but I'm sure someone enjoyed it.
Like, my legs feel asleep I took so long writing this.