Sup Barrage and Obliteration augs are your friend here
! It really depends on what kinda thing you're looking at doing with it (personally I wouldn't Aug a t21 ship prioritising pvp in a t22 dominated universe); I found AoS x2, Sup Barrage, Rdio to be pretty fun for PvAi.
As for gear, KRS is pretty standard, however it is massive - dont be afraid to go with lower bank, faster regen shields (paired with the centred Adv subskill) which will ultimately leave you more room for wep variation!
I used an eridium furnace - low vis, decent regen & combined with a barrage Aug you'll have enough bank to pretty much wipe anything within reason (centred subskill comes in handy again).
Hydra gear (although being nerfed) is still something to consider for an engine, purely because you can bindo spam them relatively cheaply until you get a decent set of mods.
Darkened capacitors are always useful, especially with the introduction of more painfully vis inducing suns.
FT Merc Pharos is quite a handy radar, with passive radars still being buggered I'd advise looking around too see if you find any you like & fit your play style.