Bookmaker and Betonline are far and away the best books right now.
Heritage is also a very good book. They don't pay quite as fast as BM and BOL and they have lower limits.
Betus, gtbets, youwager, betnow, wagerweb, BAS are all good second tier books. But they all have their issues (limiting during roll over, too much kyc, heavy withdrawal fees, low limits... etc etc)
I would stay away from everywhere else. No matter what their rating is on BMR