I would recommend for you train on monsters that you need for your quest. That's one of the best way to level up and get a bit of copper. Surely you wouldn't have had finished all your quest right? (coz I have trouble keeping myself up to date with quest)
Otherwise... Have you got any production skills? Should check out the monsters drops page and see which mobs drop what you need.
If not again... then go for monsters that are yellow-named to you.
__________________
G____G
G____GTevaG____G Heart___G_Hessah_G___Heart
79 - Paladin | 85 - Enchanter | 91 - Scoutxx
Ninja text! For those who's easily amused I can show you the woooorld!
I don't want to see it!
okay...
There isn't a levelling guide, but go to Wiki and check out the maps. They have a list of monsters and an approximate level range for each monster. That might help you.