http://wiki.project1999.com/Per-Level_Hunting_Guide
For your level there's a little "charm" icon next to spiders in East Karana (which has the 75pp per Halfling Part quest from Greengrocer going on right now) and the Warsliks Woods forest giant fort.
Of course, just because a hunting spot doesn't have the "charm" icon doesn't mean you can't charm stuff there, so plenty of the other hunting spots might be viable too.