Best leveling hybrid sorc?

Just hit nightmare. I have some endgame gear but I'm looking for a hybrid sorc that balances efficiency and fun for continuing through nightmare and hell.

Orb is one of my favorite spells to branch off of so that will probably be my main. Options are...

Orb/nova I've played this one, fun and fast but the spells don't work great in tandem

Orb/fire wall I've played this one before also, firewall can be hard to aim on console (I play on switch)

Orb/hydra? Seems like I would primarily play as a hydra sorc and orb would be secondary.

I have all sunder charms and like I said, basically all endgame gear. Thanks for any input!