Best place(s) to train 50 - 100 for low-tier characters?

My preferred method lately, and I know it isn't the best or fastest, has been pretty much sticking to Zipangu until late 40s or early 50s (Crows > cloud fox > big cloud fox > possibly the map after them) then doing the Orbis theme dungeon and killing stuff there/Azwan until 59, taking advantage of Tot's free levels every time I can (59-61 for example are just click through and accept then level up, even nets you a 4 hour 1.5x exp coupon) and from 61-70 doing monster park. Plus with the free 1.5 coupons every day for the event getting to 70 isn't too hard, but that's also where I've been stopping for now seeing as how I've just been doing level 1 link skill mules.