british council doha - al saad http://www.britishcouncil.org/qatar.htm
academic / general training exam @ 875qr

ielts-college of north atlantic qatar
https://www.cna-qatar.com/Pages/default.aspx

if you are aiming for lower than band 6 and below, i think no need for review class, self review is more than enough.

there are some review classes or some are offering tutorial kindly check the classifieds above.

Goodluck!