Hello anybody in the house that has idea of any good aircraft dispatcher school in abroad

There are loads of them in the U.S as long as you can afford it and cross the visa application huddles.
There's also the Emirates Academy in Dubai.

Yeah thats exactly why i posted here pls i need assistance i work for a marketing company would this not be a problem wheb going for visa because a consular would ask why aircraft dispatcher and i work for a marketing company although the school said i dont need have experience in the aviation line but the consular is my problem can you advice pls

I'd suggest u join the chat room for that topic on nairaland, check link below:

https://www.nairaland.com/3905661/general-u.s.a-student-visa-enquiries-part
https://www.nairaland.com/2669622/u.s-immigration-questions-ask-u.s
https://www.nairaland.com/2991174/u.s-student-visa-f1-m1

Reading through past and current posts would educate you enough on how to process your application and present yourself at the embassy. I have never applied for a u.s visa and can't advice u on what to expect but I'm sure the interview process is quite different from other embassies'. So, information and preparation is key.