I can recommend Nitrogensports, very good odds and so many option to play.
I would agree with you on this except sometimes https://www.casinobitco.in/r?u=4856 has better ML odds. Also nitrogen only offers Moneyline, over/under 2.5, and spread for international football/soccer. Whereas books like betcoin offer more than 35 betting options as well as live in play betting which is a favorite among many bettors including myself.
IMO it would be best to split any given bankroll between two or three trustworthy books known for great odds. This way you have BTC @ the book with the best odds for whatever particular match you happen to be betting on.
Bottom line - Anyone not shopping for the best odds are giving away 10-50+ percent in potential winnings!