Hey Jakkosh,
I've just done a whip around of the major sites and the news looks a little grim. FR cash games are dying in favour of 6-Max. PokerStars is the obvious choice.
At iPoker there are currently 2 FR tables running (both full), There are currently 7k players online with peak periods generally attracting 15-20k so you might get sufficient action in peak periods.
At Microgaming there is currently one player interested in NL10 FR.
At both networks, fast fold poker is 6-Max only.
At IPN/Boss there is currently 1 table running (full).
So iPoker is a possibility, although you may struggle to play 3-4 tables for 30-40 hours a week.
Our iPoker rooms include Poker770, William Hill, Gala Poker, Coral Poker, Titan, Bet365, Betfair, Betfred, Winner, PaddyPower, Everest, Ladbrokes and Mansion.
You can check out details for these rooms here.
If you have any further questions, please don't hesitate to ask.
Regards
Laz