Sage Leveling

From iRO Wiki

Sage leveling is somewhat linear, meaning that in many cases, you will level the same place from your job change through 99. However, as you get higher up in level, a few options do open up, provided that you have the correct skill prerequisites to level there effectively.

Solo

Geographers - 50+. One north of Einbroch.
Stings - 60+. Watch out for Gargoyles, which you can Teleport using Fire Wall or kill using Heaven's Drive.
Prisons - 70+. Vertical Fire Wall large mobs and use Bolts or Heaven's Drive/Thunderstorm.
Alarms - 70+. Same tactic for Prisons. Be careful of Mimics and Ridewords.
Turtle Island Surface - 70+. Mobbing Dragontails. Be careful of cloaked Pests.
Prontera Guild Dungeon - 80+. Fast paced and dangerous. Also works with a party. Avoid Maya Purples and Maya.

With A Party

Ice Dungeon 2 or 3 - 70+. Thunderstorm large mobs with a Priest.
Turtle Island Dungeon 3 - 80+. Heaven's Drive Assaulters, Thunderstorm/Lightening Bolt Freezers, and Cold Bolt Heaters.
Biolabs 3 - 95+. Support your party with Spell Breaker, Magnetic Earth, Safety Wall, etc.