General Pool of Knowledge: RoE 1-99 Leveling guide with options

Credit for this guide goes to Batcher from Asura for the most part. There are dribs and drabs of my info in here.

Before you begin, make sure you have the following RoE quests active at all times:

Combat(Wide Area) > Combat (General) > Vanquish multiple enemies (Any/All available)
Combat(Wide Area) > Combat(General) > Deal Damage (Any/All available)
Unity > Unity (Shared C) > Vanquish Multiple Enemies C (UC)
Unity > Unity (Shared C) > Van. Enemies with Unity Leader C (UC) (Make sure to have unity leader out as trust)
Other > Daily Objectives > Vanquish Multiple Enemies (D)

You may or may not have access to the unity quests, but if you do, take them. My guide will reference which additional quests to pick up.
Basic Tips

Always have food, sanction/imperial standing/ionis, and FoV/GoV book refresh/regen if available.
Always have the latest weapon/armor available to your class. It will improve the speed at which you kill things.
Always resummon trusts every few levels, they do not level alongside you.
If mage class, consider subbing /dnc or /nin and dual-weilding clubs to melee/cast as you will need to engage the monster in order for trusts to activate.

1-12

Outside City Zones
Start from right outside the city exits and work your way towards La Thiene/Konschtat/Tahrongi (depending on where you started).
Maps not necessary, it’s basically the entire zones.
RoE Quest (Depending on where you chose to level):

Combat(Region)>Combat (Original Areas 1) > Conflict: West Ronfaure
Combat(Region)>Combat (Original Areas 1) > Conflict: East Ronfaure
Combat(Region)>Combat (Original Areas 3) > Conflict: West Sarutabaruta
Combat(Region)>Combat (Original Areas 3) > Conflict: East Sarutabaruta
Combat(Region)>Combat (Original Areas 2) > Conflict: North Gustaberg
Combat(Region)>Combat (Original Areas 2) > Conflict: South Gustaberg

12-25

Valkurm Dunes.
You can start at the Konschtat Highlands zone exit with lizards and goblins. Around lvl.20 you can progress towards Leeches,Sheep,Goblins,Crabs near Selbina.

RoE Quests:

Combat(Region)>Combat (Original Areas 1) > Conflict: Valkurm Dunes

Alternatives: Buburimbu Peninsula

25-35

Qufim Island.
Worms,crabs, and giants until lvl.30. Then you can do Pugils, Leeches until 35.

RoE Quests:

Combat(Region)>Combat (Original Areas 4) > Conflict: Qufim Island

35-45

Garliage Citadel.
Take GoV page 2 and kill beetles/bats.

RoE Quests:

Combat(Region)>Combat (Original Areas 3) > Conflict: Garliage Citadel

Alternatives: Crawler’s Nest

45-85

Escha-Zi’Tah -
Access to this zone will require you to complete the Rhapsodies of Vana’Diel mission Eddies of Despair.

45-55 Worms right at the entrance to the zone. You can kill leeches around 47, but try to avoid them for the most part.At 51/52, follow the direct path from the worms to Dhalmels/Weapons and kill those until 60.
55-65 Coeurls just south of Portal 2. You can Kill these until about 65-68 and then your xp rate drops pretty fast
65-75 Vultures & Corses north of portal 4. Exp drops off around 73
75-85 Goobbues & Wasps just west of portal 8. Don't bother with the snapweeds, they inflict too many status effects to be worth it and there are plenty of the Goobbues and wasps.

60-80

Bhaflau Thickets
60-65 can do lesser colibri right outside Whitegate. 65-70 would be Colibri (not lesser), there are a few good colibri camps in bhaflau. 70-80 you fight Greater Colibri, this camp is reached via Nyzul Isle.