Well if you play as Vanguard like I am on my paragon run, you can pick up Aria's Flare ability (I am on a second run so I had it out of the gate) and combine it with Pull (double is ideal) for some major explosion action. My routine is to buzz with the Harrier (or have a squadmate strip the shield if present) and prime and boom. Even on insanity it levels groups of enemies and completely trivializes anything without shields. And as an Adept, you can always switch it up to Charge/Nova if you get bored or want to engage in close. If you have Liara and/or Javik around in your party, its pretty much non stop explosions, since you can still use Singularity or Dark Channel (or whatever Javiks dot is called) on stuff that would otherwise ignore primers. I just did the Omega bit last night with that setup and it was a fucking face roll even on Insanity, especially with Aria to prime for me constantly. Just have to be careful around sync kill enemies like the Atlas, Banshee, or Brute. (Though Brutes absolutely fucking melt in the face of explosion spam).
If you like explosions, make sure to beeline for the power increase mods and always take the explosion boosting options on powers. The damage that explosions deal is vastly superior to even fully upgraded damage, plus it ignores shield gating on the enemy. If you don't mele as part of your routine, the harrier with power boost and stabalize is really good for any sort of biotic setup. If you are mixing in some mele, then go for the heaviest pistol you can have with 200% recharge bonus and slap the power boost and mele mod on it. You will barely ever need to even pull the trigger except on things with sync kills.
Side note, playing Omega as Paragon (something I had not ever done before) was rather interesting in how different the ending wound up. I am looking forward to seeing how different the Citidel DLC is with a Paragon run and everyone around. Fuck you EA and blue hairs for turning this franchise into shit. Even the three cupcake ending of ME3 is a lot better than the fucking shovelware that game companies generally put out these days in general, and bioware in particular since.