High levels druids and wizards can farm Jboots MQs like nobody's business. It's a bit tedious but the OOT AC camp is also very decent exp like 44 - 53ish over time if you're comfortable w a very semi afk camp while doing other stuff on your computer or working around the house with your 5 or 5.5min timer set on your phone after you down a PH.
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Lots of other casters can do this too but being able to port yourself to SRO shortly before 9pm game time and porting all over the world to check shadow mans for rapiers, then being able to port both yourself and others close to Rathe mtns/Hasten to finish their "quest" makes wizard/druid best at this hustle.