Premium Mini-dungeons in EMS.

RGTS (together with Neo City and it's expansion), Chaos Zakum/HT, Formosa (or whatever that toad woman is named; infact, that whole area (of which I don't even know the name)), Malaysia, Ulu City, Visitor PQ (it's a place after all), CWK(PQ), Pine Forest Area in Japan (Himes/Black Crow).

Indeed, nothing at all.

RGTS, archer only + nerfed after BB
BF, nerfed as well + these are not significally better for exp than Oblivion in TT.
Chaos Zakum/HT <- horrible for EXP
Formosa <- we dont have
Ninja Castle <- useless low level place, toad will be nerfed as well
Malaysia <- Is not high level place
Ulu City <- Is not end game leveling place
Visitor PQ <- does not give any exp really.
CWKPQ <- does not give any exp really
Himes <- not really a end game place

We do not have high level place that's better than what you have.