I would think; Among the 'top 10' in your own list; Is someone who speaks 'Portuguese'! ..{chuckle}
Who is the best chess coach so many in Numbers in Directory ?

Hi friends , I know English too .I am fine with it ...So just a Best coach who can bring me to GM Norm ..

Hi friends , I know English too .I am fine with it ...So just a Best coach who can bring me to GM Norm ..
What is your current age?, unless your about 8 years old and have a near expert rating already, you wont make it to GM level.

I am studing in school .I have a Fide rating too (Privacy issue ,not to be disscussed) I want a coach to bring me up

A good coach for someone might not necesarilly be the best for you. The chemistry which motivates a student can be a little hard to decypher... However, here's a brief list of questions which you should probably ask before you hire someone:
Does he really enjoy coaching other people?
Does he have the experience to teach? because teaching is a lot more than just being able to play well... (case in point, I don't think Messi would be a good soccer coach!)
Does he spend more time and effort on his students than reasonably expected to?
Has he developed training systems for his students?
Does he annotate your games?
Does he have original files and material that he has worked on for years?
Does he offer full on-line support?
Apart from making a profit, has he contributed in any way to the chess community?
Are his fees reasonable?
Does he track your progress? (i.e. regular on-line tests, etc.)
Is he a titled coach?
Good luck!
Who is the best chess coach so many in Numbers in Directory ?