There is a lazy method and a fast method that I know, you decide.
1.Get two Soul Masters, a friend would be helpful.
2.Have up to 600-700 LK + AC on each person. Easily obtain if both Soul Master are lv250+ or have access to myshop.
3.Master both of your Blessings on each Soul Master.
Optional: Master the elemental shields.
4.Basically, sit the two Soul Masters on Nora mummy spam spot located near La Vida at Nora Sewer.
5.Activate your Blessings and let them do the magic.
It's not fast as the next option, but require little effort and almost no movement. I personally like the lazy method, because I can sit there, cast, watch some videos, recast, cook some food to eat.
Spam AoE at Bad Furies located in Cora Field 2, simple as that. Do you need a reason? lol The Furies drop rate seems to be the best as they are in clusters.