My NB uses 5 piece Julianos, 5 piece Clever Alchemist, and 3 piece Willpower. You would have to have dual wield on one of your bars though. You could have destro on one bar to activate alchemist, than weapon swap to dual wield to have both the alchemist and julianos bonus together.
Starting off, willpower is best jelewery set. Might look at ancient grace another 3 piece Magicka jelewery set. Torug pact and julnaous are pretty amazing just saying. I would look at some builds and see if you can find a suitable playstle.
Since you can't craft jewelry you are probably thinking of an "overworld set". The kind of set where delve bosses on a regular pve map drop armor pieces and dolmens drop jewelry.
You can try to get Spinners set. This will serve you well if you ever want to pick up some skill points from pvping.