I can solo Queen Bolette fairly easy. You might need to level your THM to get some DoTs if you don't already have them. Not sure if she drops anything very useful, but it might be a place to start. All of the NMs I've done so far have basically been endurance fights, so you could start with her and learn the basics (DoT sticking, MP management, keeping HP topped off) before moving on to the other NMs that have the gear you want. She pops by Camp Tranquil in the BS.