27/9 beat me to it.... Go to a Pt.141 outfit.
If you want to do the full upsized meal deal training package to CPL/MEIR/C-cat then pick a place that can do it all. I recommend doing it at a place where there may be opportunities to work at on completion and not just instructing, somewhere that has a commercial ATO side to the business.... like Mainland Air, HB&EC Aero Club, Flight Training/Air Manawatu, Air Wanganui ?? New Plymouth Aero Club for examples....
Cheers
S2K