Which Parametric eq to tune my room

If you are looking to tune your room, I would suggest a Graphic-EQ over a Parametric-EQ. As for what brands, I don't know what to suggest.

As its your room that generates the low frequency build up not your monitors the best way would be to treat the source of evil. Equing your monitors would probably just screw up your listening enviroment even more. heres a really useful link for making slot low/mid frequency resonators

Don't eq the room, treat it.

If the room has distinct resonances f.ex, EQing them out will only lower their volume, not stop them ringing.