Where to group at 37

[Ocelo]

Track blue mobs in the karana's, preferably South Karana. Solo tracked mobs down, earn xp and the occasional rare drop. Profit.

http://wiki.project1999.com/South_Karana

Ranger's are great safari hunters. They can even forage their own food and water. Just remember to take a bath when you get back to civilization in a few levels.

The zone even has a dungeon for you at this level. Splitpaw. You can solo entrance mobs or group up and slay farther in.