I've been fighting Ant Eggs until Lv ~15.
Then went to the payon wolf map, tanked a few wolves until it reached lv 18 and from then on my vani fought fine all by itself. (currently Lv41 and still there)
OD1 seems deserted and there are only a few Alchs with Homuns on OD2.
Lv 41 isn't strong enough for a vani to stay alive in OD2 though.
Dunno where to go at the moment, probably staying at wolves until Lv +50.
No clue where else people level their Homuns at.