If you're 31, looking to hit 32, try Enchanted lands.
(list compliments of ogaming)
* Badgers - level 32 non aggro
* Sand and Salt snappers levels 31-34 non aggro
* Fairies - levels 31-34 a few aggro
* Deer - levels 31-33 non aggro
* Beetles levels 31-32 aggro
* Wasps levels 32-34 some aggro
* Spiders levels 34-36 some aggro; some heroic
* Lashers levels 34-35 aggro; some heroic
* Grimmin levels 34-35 aggro
* Defiled halflings levels 35-36 aggro
* Seeds (globules) levels 35-36 aggro; some heroic
* Creepers level 36 aggro; some heroic
* Runnyeye goblins levels 35-36 aggro; some heroic
* Lamias levels 36-38 most aggro; some heroic
* Evil eyes level 37 aggro; some heroic
* Shoal serpents level 37
* Nightbloods levels 39-40 aggro; some heroic
* Scarecrows level 39 aggro
* Nymphs level 38 aggro
* Roekillik level 38 non aggro
* Muckfins level 34
* Bears level 35-38 most aggro
* Trout level 34 non aggro
* Sirens levels 32-33 aggro
* The Sludge Creep level 39^^
* Chomper level 39^^
Otherwise, try these.
http://www.redguides.com/community/showthread.php?t=2071